Use the fact that the AES-NI instructions can be pipelined to improve
performance... Use SSE2 instructions for calculating the XTS tweek factor... Let the compiler do more work and handle register allocation by using intrinsics, now only the key schedule is in assembly... Replace .byte hard coded instructions w/ the proper instructions now that both clang and gcc support them... On my machine, pulling the code to userland I saw performance go from ~150MB/sec to 2GB/sec in XTS mode. GELI on GNOP saw a more modest increase of about 3x due to other system overhead (geom and opencrypto)... These changes allow almost full disk io rate w/ geli... Reviewed by: -current, -security Thanks to: Mike Hamburg for the XTS tweek algorithm
This commit is contained in:
John-Mark Gurney
parent
003f0fa63f
commit
ff6c7bf5ca
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=255187
@ -138,10 +138,13 @@ amd64/amd64/uma_machdep.c standard
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amd64/amd64/vm_machdep.c standard
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amd64/pci/pci_cfgreg.c optional pci
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cddl/contrib/opensolaris/common/atomic/amd64/opensolaris_atomic.S optional zfs compile-with "${ZFS_S}"
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crypto/aesni/aesencdec_amd64.S optional aesni
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crypto/aesni/aeskeys_amd64.S optional aesni
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crypto/aesni/aesni.c optional aesni
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crypto/aesni/aesni_wrap.c optional aesni
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aesni_wrap.o optional aesni \
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dependency "$S/crypto/aesni/aesni_wrap.c" \
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compile-with "${CC} -c ${CFLAGS:C/^-O2$/-O3/:N-nostdinc} ${WERROR} ${PROF} -mmmx -msse -maes ${.IMPSRC}" \
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no-implicit-rule \
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clean "aesni_wrap.o"
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crypto/blowfish/bf_enc.c optional crypto | ipsec
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crypto/des/des_enc.c optional crypto | ipsec | netsmb
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crypto/via/padlock.c optional padlock
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@ -124,10 +124,13 @@ bf_enc.o optional crypto | ipsec \
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dependency "$S/crypto/blowfish/arch/i386/bf_enc.S $S/crypto/blowfish/arch/i386/bf_enc_586.S $S/crypto/blowfish/arch/i386/bf_enc_686.S" \
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compile-with "${CC} -c -I$S/crypto/blowfish/arch/i386 ${ASM_CFLAGS} ${WERROR} ${.IMPSRC}" \
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no-implicit-rule
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crypto/aesni/aesencdec_i386.S optional aesni
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crypto/aesni/aeskeys_i386.S optional aesni
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crypto/aesni/aesni.c optional aesni
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crypto/aesni/aesni_wrap.c optional aesni
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aesni_wrap.o optional aesni \
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dependency "$S/crypto/aesni/aesni_wrap.c" \
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compile-with "${CC} -c ${CFLAGS:C/^-O2$/-O3/:N-nostdinc} ${WERROR} ${PROF} -mmmx -msse -maes ${.IMPSRC}" \
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no-implicit-rule \
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clean "aesni_wrap.o"
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crypto/des/arch/i386/des_enc.S optional crypto | ipsec | netsmb
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crypto/via/padlock.c optional padlock
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crypto/via/padlock_cipher.c optional padlock
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136
sys/crypto/aesni/aesencdec.h
Normal file
136
sys/crypto/aesni/aesencdec.h
Normal file
@ -0,0 +1,136 @@
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/*-
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* Copyright 2013 John-Mark Gurney <jmg@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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||||
* are met:
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||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. 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.
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||||
*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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||||
* 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 AUTHOR OR CONTRIBUTORS BE LIABLE
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||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*
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*/
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#include <wmmintrin.h>
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static inline void
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aesni_enc8(int rounds, const uint8_t *key_schedule, __m128i a,
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__m128i b, __m128i c, __m128i d, __m128i e, __m128i f, __m128i g,
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__m128i h, __m128i out[8])
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{
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const __m128i *keysched = (const __m128i *)key_schedule;
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int i;
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a ^= keysched[0];
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b ^= keysched[0];
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c ^= keysched[0];
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d ^= keysched[0];
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e ^= keysched[0];
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f ^= keysched[0];
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g ^= keysched[0];
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h ^= keysched[0];
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for (i = 0; i < rounds; i++) {
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a = _mm_aesenc_si128(a, keysched[i + 1]);
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b = _mm_aesenc_si128(b, keysched[i + 1]);
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c = _mm_aesenc_si128(c, keysched[i + 1]);
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d = _mm_aesenc_si128(d, keysched[i + 1]);
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e = _mm_aesenc_si128(e, keysched[i + 1]);
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f = _mm_aesenc_si128(f, keysched[i + 1]);
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g = _mm_aesenc_si128(g, keysched[i + 1]);
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h = _mm_aesenc_si128(h, keysched[i + 1]);
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}
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out[0] = _mm_aesenclast_si128(a, keysched[i + 1]);
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out[1] = _mm_aesenclast_si128(b, keysched[i + 1]);
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out[2] = _mm_aesenclast_si128(c, keysched[i + 1]);
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out[3] = _mm_aesenclast_si128(d, keysched[i + 1]);
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out[4] = _mm_aesenclast_si128(e, keysched[i + 1]);
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out[5] = _mm_aesenclast_si128(f, keysched[i + 1]);
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out[6] = _mm_aesenclast_si128(g, keysched[i + 1]);
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out[7] = _mm_aesenclast_si128(h, keysched[i + 1]);
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}
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static inline void
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aesni_dec8(int rounds, const uint8_t *key_schedule, __m128i a,
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__m128i b, __m128i c, __m128i d, __m128i e, __m128i f, __m128i g,
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__m128i h, __m128i out[8])
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{
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const __m128i *keysched = (const __m128i *)key_schedule;
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int i;
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a ^= keysched[0];
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b ^= keysched[0];
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c ^= keysched[0];
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d ^= keysched[0];
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e ^= keysched[0];
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f ^= keysched[0];
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g ^= keysched[0];
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h ^= keysched[0];
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for (i = 0; i < rounds; i++) {
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a = _mm_aesdec_si128(a, keysched[i + 1]);
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b = _mm_aesdec_si128(b, keysched[i + 1]);
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c = _mm_aesdec_si128(c, keysched[i + 1]);
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d = _mm_aesdec_si128(d, keysched[i + 1]);
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e = _mm_aesdec_si128(e, keysched[i + 1]);
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f = _mm_aesdec_si128(f, keysched[i + 1]);
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g = _mm_aesdec_si128(g, keysched[i + 1]);
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h = _mm_aesdec_si128(h, keysched[i + 1]);
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}
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out[0] = _mm_aesdeclast_si128(a, keysched[i + 1]);
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out[1] = _mm_aesdeclast_si128(b, keysched[i + 1]);
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out[2] = _mm_aesdeclast_si128(c, keysched[i + 1]);
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out[3] = _mm_aesdeclast_si128(d, keysched[i + 1]);
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out[4] = _mm_aesdeclast_si128(e, keysched[i + 1]);
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out[5] = _mm_aesdeclast_si128(f, keysched[i + 1]);
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out[6] = _mm_aesdeclast_si128(g, keysched[i + 1]);
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out[7] = _mm_aesdeclast_si128(h, keysched[i + 1]);
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}
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static inline __m128i
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aesni_enc(int rounds, const uint8_t *key_schedule, const __m128i from)
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{
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__m128i tmp;
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const __m128i *keysched = (const __m128i *)key_schedule;
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int i;
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tmp = from ^ keysched[0];
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for (i = 0; i < rounds; i++)
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tmp = _mm_aesenc_si128(tmp, keysched[i + 1]);
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return _mm_aesenclast_si128(tmp, keysched[i + 1]);
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}
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static inline __m128i
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aesni_dec(int rounds, const uint8_t *key_schedule, const __m128i from)
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{
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__m128i tmp;
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const __m128i *keysched = (const __m128i *)key_schedule;
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int i;
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tmp = from ^ keysched[0];
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for (i = 0; i < rounds; i++)
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tmp = _mm_aesdec_si128(tmp, keysched[i + 1]);
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return _mm_aesdeclast_si128(tmp, keysched[i + 1]);
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}
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@ -1,135 +0,0 @@
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/*-
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* Copyright (c) 2010 Konstantin Belousov <kib@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. 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.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS 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 AUTHORS 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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#include <machine/asmacros.h>
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|
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.text
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ENTRY(aesni_enc)
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.cfi_startproc
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movdqu (%rdx),%xmm0
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cmpq $0,%r8
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je 1f
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movdqu (%r8),%xmm1 /* unaligned load into reg */
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pxor %xmm1,%xmm0 /* pxor otherwise can fault on iv */
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1:
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pxor (%rsi),%xmm0
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2:
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addq $0x10,%rsi
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// aesenc (%rsi),%xmm0
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.byte 0x66,0x0f,0x38,0xdc,0x06
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decl %edi
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jne 2b
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addq $0x10,%rsi
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// aesenclast (%rsi),%xmm0
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.byte 0x66,0x0f,0x38,0xdd,0x06
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movdqu %xmm0,(%rcx)
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retq
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.cfi_endproc
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END(aesni_enc)
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ENTRY(aesni_dec)
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.cfi_startproc
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movdqu (%rdx),%xmm0
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pxor (%rsi),%xmm0
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1:
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addq $0x10,%rsi
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// aesdec (%rsi),%xmm0
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.byte 0x66,0x0f,0x38,0xde,0x06
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decl %edi
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jne 1b
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addq $0x10,%rsi
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// aesdeclast (%rsi),%xmm0
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.byte 0x66,0x0f,0x38,0xdf,0x06
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cmpq $0,%r8
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je 2f
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movdqu (%r8),%xmm1
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pxor %xmm1,%xmm0
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2:
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movdqu %xmm0,(%rcx)
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retq
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.cfi_endproc
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||||
END(aesni_dec)
|
||||
|
||||
ENTRY(aesni_decrypt_cbc)
|
||||
.cfi_startproc
|
||||
shrq $4,%rdx
|
||||
movdqu (%r8),%xmm1
|
||||
1:
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movdqu (%rcx),%xmm0
|
||||
movdqa %xmm0,%xmm2
|
||||
pxor (%rsi),%xmm0
|
||||
cmpl $12,%edi
|
||||
// aesdec 0x10(%rsi),%xmm0
|
||||
.byte 0x66,0x0f,0x38,0xde,0x46,0x10
|
||||
// aesdec 0x20(%rsi),%xmm0
|
||||
.byte 0x66,0x0f,0x38,0xde,0x46,0x20
|
||||
// aesdec 0x30(%rsi),%xmm0
|
||||
.byte 0x66,0x0f,0x38,0xde,0x46,0x30
|
||||
// aesdec 0x40(%rsi),%xmm0
|
||||
.byte 0x66,0x0f,0x38,0xde,0x46,0x40
|
||||
// aesdec 0x50(%rsi),%xmm0
|
||||
.byte 0x66,0x0f,0x38,0xde,0x46,0x50
|
||||
// aesdec 0x60(%rsi),%xmm0
|
||||
.byte 0x66,0x0f,0x38,0xde,0x46,0x60
|
||||
// aesdec 0x70(%rsi),%xmm0
|
||||
.byte 0x66,0x0f,0x38,0xde,0x46,0x70
|
||||
// aesdec 0x80(%rsi),%xmm0
|
||||
.byte 0x66,0x0f,0x38,0xde,0x86,0x80,0x00,0x00,0x00
|
||||
// aesdec 0x90(%rsi),%xmm0
|
||||
.byte 0x66,0x0f,0x38,0xde,0x86,0x90,0x00,0x00,0x00
|
||||
jge 2f
|
||||
// aesdeclast 0xa0(%rsi),%xmm0
|
||||
.byte 0x66,0x0f,0x38,0xdf,0x86,0xa0,0x00,0x00,0x00
|
||||
jmp 4f
|
||||
2:
|
||||
// aesdec 0xa0(%rsi),%xmm0
|
||||
.byte 0x66,0x0f,0x38,0xde,0x86,0xa0,0x00,0x00,0x00
|
||||
// aesdec 0xb0(%rsi),%xmm0
|
||||
.byte 0x66,0x0f,0x38,0xde,0x86,0xb0,0x00,0x00,0x00
|
||||
jg 3f
|
||||
// aesdeclast 0xc0(%rsi),%xmm0
|
||||
.byte 0x66,0x0f,0x38,0xdf,0x86,0xc0,0x00,0x00,0x00
|
||||
jmp 4f
|
||||
3:
|
||||
// aesdec 0xc0(%rsi),%xmm0
|
||||
.byte 0x66,0x0f,0x38,0xde,0x86,0xc0,0x00,0x00,0x00
|
||||
// aesdec 0xd0(%rsi),%xmm0
|
||||
.byte 0x66,0x0f,0x38,0xde,0x86,0xd0,0x00,0x00,0x00
|
||||
// aesdeclast 0xe0(%rsi),%xmm0
|
||||
.byte 0x66,0x0f,0x38,0xdf,0x86,0xe0,0x00,0x00,0x00
|
||||
4:
|
||||
pxor %xmm1,%xmm0
|
||||
movdqu %xmm0,(%rcx)
|
||||
movdqa %xmm2,%xmm1 // iv
|
||||
addq $0x10,%rcx
|
||||
decq %rdx
|
||||
jne 1b
|
||||
retq
|
||||
.cfi_endproc
|
||||
END(aesni_decrypt_cbc)
|
||||
|
||||
.ident "$FreeBSD$"
|
||||
@ -1,166 +0,0 @@
|
||||
/*-
|
||||
* Copyright (c) 2010 Konstantin Belousov <kib@FreeBSD.org>
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. 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.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS 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 AUTHORS 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.
|
||||
*/
|
||||
|
||||
#include <machine/asmacros.h>
|
||||
|
||||
ENTRY(aesni_enc)
|
||||
.cfi_startproc
|
||||
pushl %ebp
|
||||
.cfi_adjust_cfa_offset 4
|
||||
movl %esp,%ebp
|
||||
movl 8(%ebp),%ecx /* rounds */
|
||||
movl 16(%ebp),%edx
|
||||
movdqu (%edx),%xmm0 /* from */
|
||||
movl 24(%ebp),%eax /* iv */
|
||||
cmpl $0,%eax
|
||||
je 1f
|
||||
movdqu (%eax),%xmm1
|
||||
pxor %xmm1,%xmm0
|
||||
1:
|
||||
movl 12(%ebp),%eax /* key */
|
||||
pxor (%eax),%xmm0
|
||||
2:
|
||||
addl $0x10,%eax
|
||||
// aesenc (%eax),%xmm0
|
||||
.byte 0x66,0x0f,0x38,0xdc,0x00
|
||||
loopne 2b
|
||||
addl $0x10,%eax
|
||||
// aesenclast (%eax),%xmm0
|
||||
.byte 0x66,0x0f,0x38,0xdd,0x00
|
||||
movl 20(%ebp),%eax
|
||||
movdqu %xmm0,(%eax) /* to */
|
||||
leave
|
||||
.cfi_adjust_cfa_offset -4
|
||||
retl
|
||||
.cfi_endproc
|
||||
END(aesni_enc)
|
||||
|
||||
ENTRY(aesni_dec)
|
||||
.cfi_startproc
|
||||
pushl %ebp
|
||||
.cfi_adjust_cfa_offset 4
|
||||
movl %esp,%ebp
|
||||
movl 8(%ebp),%ecx /* rounds */
|
||||
movl 16(%ebp),%edx
|
||||
movdqu (%edx),%xmm0 /* from */
|
||||
movl 12(%ebp),%eax /* key */
|
||||
pxor (%eax),%xmm0
|
||||
1:
|
||||
addl $0x10,%eax
|
||||
// aesdec (%eax),%xmm0
|
||||
.byte 0x66,0x0f,0x38,0xde,0x00
|
||||
loopne 1b
|
||||
addl $0x10,%eax
|
||||
// aesdeclast (%eax),%xmm0
|
||||
.byte 0x66,0x0f,0x38,0xdf,0x00
|
||||
movl 24(%ebp),%eax
|
||||
cmpl $0,%eax /* iv */
|
||||
je 2f
|
||||
movdqu (%eax),%xmm1
|
||||
pxor %xmm1,%xmm0
|
||||
2:
|
||||
movl 20(%ebp),%eax
|
||||
movdqu %xmm0,(%eax) /* to */
|
||||
leave
|
||||
.cfi_adjust_cfa_offset -4
|
||||
retl
|
||||
.cfi_endproc
|
||||
END(aesni_dec)
|
||||
|
||||
ENTRY(aesni_decrypt_cbc)
|
||||
.cfi_startproc
|
||||
pushl %ebp
|
||||
.cfi_adjust_cfa_offset 4
|
||||
movl %esp,%ebp
|
||||
pushl %ebx
|
||||
pushl %esi
|
||||
movl 12(%ebp),%eax /* key */
|
||||
movl 16(%ebp),%ecx /* length */
|
||||
shrl $4,%ecx
|
||||
movl 20(%ebp),%ebx /* buf */
|
||||
movl 24(%ebp),%esi
|
||||
movdqu (%esi),%xmm1 /* iv */
|
||||
movl 8(%ebp),%esi /* rounds */
|
||||
1:
|
||||
movdqu (%ebx),%xmm0
|
||||
movdqa %xmm0,%xmm2
|
||||
pxor (%eax),%xmm0
|
||||
cmpl $12,%esi
|
||||
// aesdec 0x10(%eax),%xmm0
|
||||
.byte 0x66,0x0f,0x38,0xde,0x40,0x10
|
||||
// aesdec 0x20(%eax),%xmm0
|
||||
.byte 0x66,0x0f,0x38,0xde,0x40,0x20
|
||||
// aesdec 0x30(%eax),%xmm0
|
||||
.byte 0x66,0x0f,0x38,0xde,0x40,0x30
|
||||
// aesdec 0x40(%eax),%xmm0
|
||||
.byte 0x66,0x0f,0x38,0xde,0x40,0x40
|
||||
// aesdec 0x50(%eax),%xmm0
|
||||
.byte 0x66,0x0f,0x38,0xde,0x40,0x50
|
||||
// aesdec 0x60(%eax),%xmm0
|
||||
.byte 0x66,0x0f,0x38,0xde,0x40,0x60
|
||||
// aesdec 0x70(%eax),%xmm0
|
||||
.byte 0x66,0x0f,0x38,0xde,0x40,0x70
|
||||
// aesdec 0x80(%eax),%xmm0
|
||||
.byte 0x66,0x0f,0x38,0xde,0x80,0x80,0x00,0x00,0x00
|
||||
// aesdec 0x90(%eax),%xmm0
|
||||
.byte 0x66,0x0f,0x38,0xde,0x80,0x90,0x00,0x00,0x00
|
||||
jge 2f
|
||||
// aesdeclast 0xa0(%eax),%xmm0
|
||||
.byte 0x66,0x0f,0x38,0xdf,0x80,0xa0,0x00,0x00,0x00
|
||||
jmp 4f
|
||||
2:
|
||||
// aesdec 0xa0(%eax),%xmm0
|
||||
.byte 0x66,0x0f,0x38,0xde,0x80,0xa0,0x00,0x00,0x00
|
||||
// aesdec 0xb0(%eax),%xmm0
|
||||
.byte 0x66,0x0f,0x38,0xde,0x80,0xb0,0x00,0x00,0x00
|
||||
jg 3f
|
||||
// aesdeclast 0xc0(%eax),%xmm0
|
||||
.byte 0x66,0x0f,0x38,0xdf,0x80,0xc0,0x00,0x00,0x00
|
||||
jmp 4f
|
||||
3:
|
||||
// aesdec 0xc0(%eax),%xmm0
|
||||
.byte 0x66,0x0f,0x38,0xde,0x80,0xc0,0x00,0x00,0x00
|
||||
// aesdec 0xd0(%eax),%xmm0
|
||||
.byte 0x66,0x0f,0x38,0xde,0x80,0xd0,0x00,0x00,0x00
|
||||
// aesdeclast 0xe0(%eax),%xmm0
|
||||
.byte 0x66,0x0f,0x38,0xdf,0x80,0xe0,0x00,0x00,0x00
|
||||
4:
|
||||
pxor %xmm1,%xmm0
|
||||
movdqu %xmm0,(%ebx)
|
||||
movdqa %xmm2,%xmm1
|
||||
addl $0x10,%ebx
|
||||
decl %ecx
|
||||
jne 1b
|
||||
|
||||
popl %esi
|
||||
popl %ebx
|
||||
leave
|
||||
.cfi_adjust_cfa_offset -4
|
||||
retl
|
||||
.cfi_endproc
|
||||
END(aesni_decrypt_cbc)
|
||||
|
||||
.ident "$FreeBSD$"
|
||||
@ -125,103 +125,72 @@ ENTRY(aesni_set_enckey)
|
||||
movups 0x10(%rdi),%xmm2 # other user key
|
||||
movaps %xmm2,(%rsi)
|
||||
addq $0x10,%rsi
|
||||
// aeskeygenassist $0x1,%xmm2,%xmm1 # round 1
|
||||
.byte 0x66,0x0f,0x3a,0xdf,0xca,0x01
|
||||
aeskeygenassist $0x1,%xmm2,%xmm1 # round 1
|
||||
call _key_expansion_256a
|
||||
// aeskeygenassist $0x1,%xmm0,%xmm1
|
||||
.byte 0x66,0x0f,0x3a,0xdf,0xc8,0x01
|
||||
aeskeygenassist $0x1,%xmm0,%xmm1
|
||||
call _key_expansion_256b
|
||||
// aeskeygenassist $0x2,%xmm2,%xmm1 # round 2
|
||||
.byte 0x66,0x0f,0x3a,0xdf,0xca,0x02
|
||||
aeskeygenassist $0x2,%xmm2,%xmm1 # round 2
|
||||
call _key_expansion_256a
|
||||
// aeskeygenassist $0x2,%xmm0,%xmm1
|
||||
.byte 0x66,0x0f,0x3a,0xdf,0xc8,0x02
|
||||
aeskeygenassist $0x2,%xmm0,%xmm1
|
||||
call _key_expansion_256b
|
||||
// aeskeygenassist $0x4,%xmm2,%xmm1 # round 3
|
||||
.byte 0x66,0x0f,0x3a,0xdf,0xca,0x04
|
||||
aeskeygenassist $0x4,%xmm2,%xmm1 # round 3
|
||||
call _key_expansion_256a
|
||||
// aeskeygenassist $0x4,%xmm0,%xmm1
|
||||
.byte 0x66,0x0f,0x3a,0xdf,0xc8,0x04
|
||||
aeskeygenassist $0x4,%xmm0,%xmm1
|
||||
call _key_expansion_256b
|
||||
// aeskeygenassist $0x8,%xmm2,%xmm1 # round 4
|
||||
.byte 0x66,0x0f,0x3a,0xdf,0xca,0x08
|
||||
aeskeygenassist $0x8,%xmm2,%xmm1 # round 4
|
||||
call _key_expansion_256a
|
||||
// aeskeygenassist $0x8,%xmm0,%xmm1
|
||||
.byte 0x66,0x0f,0x3a,0xdf,0xc8,0x08
|
||||
aeskeygenassist $0x8,%xmm0,%xmm1
|
||||
call _key_expansion_256b
|
||||
// aeskeygenassist $0x10,%xmm2,%xmm1 # round 5
|
||||
.byte 0x66,0x0f,0x3a,0xdf,0xca,0x10
|
||||
aeskeygenassist $0x10,%xmm2,%xmm1 # round 5
|
||||
call _key_expansion_256a
|
||||
// aeskeygenassist $0x10,%xmm0,%xmm1
|
||||
.byte 0x66,0x0f,0x3a,0xdf,0xc8,0x10
|
||||
aeskeygenassist $0x10,%xmm0,%xmm1
|
||||
call _key_expansion_256b
|
||||
// aeskeygenassist $0x20,%xmm2,%xmm1 # round 6
|
||||
.byte 0x66,0x0f,0x3a,0xdf,0xca,0x20
|
||||
aeskeygenassist $0x20,%xmm2,%xmm1 # round 6
|
||||
call _key_expansion_256a
|
||||
// aeskeygenassist $0x20,%xmm0,%xmm1
|
||||
.byte 0x66,0x0f,0x3a,0xdf,0xc8,0x20
|
||||
aeskeygenassist $0x20,%xmm0,%xmm1
|
||||
call _key_expansion_256b
|
||||
// aeskeygenassist $0x40,%xmm2,%xmm1 # round 7
|
||||
.byte 0x66,0x0f,0x3a,0xdf,0xca,0x40
|
||||
aeskeygenassist $0x40,%xmm2,%xmm1 # round 7
|
||||
call _key_expansion_256a
|
||||
retq
|
||||
.Lenc_key192:
|
||||
movq 0x10(%rdi),%xmm2 # other user key
|
||||
// aeskeygenassist $0x1,%xmm2,%xmm1 # round 1
|
||||
.byte 0x66,0x0f,0x3a,0xdf,0xca,0x01
|
||||
aeskeygenassist $0x1,%xmm2,%xmm1 # round 1
|
||||
call _key_expansion_192a
|
||||
// aeskeygenassist $0x2,%xmm2,%xmm1 # round 2
|
||||
.byte 0x66,0x0f,0x3a,0xdf,0xca,0x02
|
||||
aeskeygenassist $0x2,%xmm2,%xmm1 # round 2
|
||||
call _key_expansion_192b
|
||||
// aeskeygenassist $0x4,%xmm2,%xmm1 # round 3
|
||||
.byte 0x66,0x0f,0x3a,0xdf,0xca,0x04
|
||||
aeskeygenassist $0x4,%xmm2,%xmm1 # round 3
|
||||
call _key_expansion_192a
|
||||
// aeskeygenassist $0x8,%xmm2,%xmm1 # round 4
|
||||
.byte 0x66,0x0f,0x3a,0xdf,0xca,0x08
|
||||
aeskeygenassist $0x8,%xmm2,%xmm1 # round 4
|
||||
call _key_expansion_192b
|
||||
// aeskeygenassist $0x10,%xmm2,%xmm1 # round 5
|
||||
.byte 0x66,0x0f,0x3a,0xdf,0xca,0x10
|
||||
aeskeygenassist $0x10,%xmm2,%xmm1 # round 5
|
||||
call _key_expansion_192a
|
||||
// aeskeygenassist $0x20,%xmm2,%xmm1 # round 6
|
||||
.byte 0x66,0x0f,0x3a,0xdf,0xca,0x20
|
||||
aeskeygenassist $0x20,%xmm2,%xmm1 # round 6
|
||||
call _key_expansion_192b
|
||||
// aeskeygenassist $0x40,%xmm2,%xmm1 # round 7
|
||||
.byte 0x66,0x0f,0x3a,0xdf,0xca,0x40
|
||||
aeskeygenassist $0x40,%xmm2,%xmm1 # round 7
|
||||
call _key_expansion_192a
|
||||
// aeskeygenassist $0x80,%xmm2,%xmm1 # round 8
|
||||
.byte 0x66,0x0f,0x3a,0xdf,0xca,0x80
|
||||
aeskeygenassist $0x80,%xmm2,%xmm1 # round 8
|
||||
call _key_expansion_192b
|
||||
retq
|
||||
.Lenc_key128:
|
||||
// aeskeygenassist $0x1,%xmm0,%xmm1 # round 1
|
||||
.byte 0x66,0x0f,0x3a,0xdf,0xc8,0x01
|
||||
aeskeygenassist $0x1,%xmm0,%xmm1 # round 1
|
||||
call _key_expansion_128
|
||||
// aeskeygenassist $0x2,%xmm0,%xmm1 # round 2
|
||||
.byte 0x66,0x0f,0x3a,0xdf,0xc8,0x02
|
||||
aeskeygenassist $0x2,%xmm0,%xmm1 # round 2
|
||||
call _key_expansion_128
|
||||
// aeskeygenassist $0x4,%xmm0,%xmm1 # round 3
|
||||
.byte 0x66,0x0f,0x3a,0xdf,0xc8,0x04
|
||||
aeskeygenassist $0x4,%xmm0,%xmm1 # round 3
|
||||
call _key_expansion_128
|
||||
// aeskeygenassist $0x8,%xmm0,%xmm1 # round 4
|
||||
.byte 0x66,0x0f,0x3a,0xdf,0xc8,0x08
|
||||
aeskeygenassist $0x8,%xmm0,%xmm1 # round 4
|
||||
call _key_expansion_128
|
||||
// aeskeygenassist $0x10,%xmm0,%xmm1 # round 5
|
||||
.byte 0x66,0x0f,0x3a,0xdf,0xc8,0x10
|
||||
aeskeygenassist $0x10,%xmm0,%xmm1 # round 5
|
||||
call _key_expansion_128
|
||||
// aeskeygenassist $0x20,%xmm0,%xmm1 # round 6
|
||||
.byte 0x66,0x0f,0x3a,0xdf,0xc8,0x20
|
||||
aeskeygenassist $0x20,%xmm0,%xmm1 # round 6
|
||||
call _key_expansion_128
|
||||
// aeskeygenassist $0x40,%xmm0,%xmm1 # round 7
|
||||
.byte 0x66,0x0f,0x3a,0xdf,0xc8,0x40
|
||||
aeskeygenassist $0x40,%xmm0,%xmm1 # round 7
|
||||
call _key_expansion_128
|
||||
// aeskeygenassist $0x80,%xmm0,%xmm1 # round 8
|
||||
.byte 0x66,0x0f,0x3a,0xdf,0xc8,0x80
|
||||
aeskeygenassist $0x80,%xmm0,%xmm1 # round 8
|
||||
call _key_expansion_128
|
||||
// aeskeygenassist $0x1b,%xmm0,%xmm1 # round 9
|
||||
.byte 0x66,0x0f,0x3a,0xdf,0xc8,0x1b
|
||||
aeskeygenassist $0x1b,%xmm0,%xmm1 # round 9
|
||||
call _key_expansion_128
|
||||
// aeskeygenassist $0x36,%xmm0,%xmm1 # round 10
|
||||
.byte 0x66,0x0f,0x3a,0xdf,0xc8,0x36
|
||||
aeskeygenassist $0x36,%xmm0,%xmm1 # round 10
|
||||
call _key_expansion_128
|
||||
retq
|
||||
.cfi_endproc
|
||||
@ -238,8 +207,7 @@ ENTRY(aesni_set_deckey)
|
||||
1:
|
||||
addq $0x10,%rsi
|
||||
subq $0x10,%rdi
|
||||
// aesimc (%rdi),%xmm1
|
||||
.byte 0x66,0x0f,0x38,0xdb,0x0f
|
||||
aesimc (%rdi),%xmm1
|
||||
movdqa %xmm1,(%rsi)
|
||||
decl %edx
|
||||
jne 1b
|
||||
|
||||
@ -40,7 +40,7 @@ __FBSDID("$FreeBSD$");
|
||||
#include <sys/bus.h>
|
||||
#include <sys/uio.h>
|
||||
#include <crypto/aesni/aesni.h>
|
||||
#include "cryptodev_if.h"
|
||||
#include <cryptodev_if.h>
|
||||
|
||||
struct aesni_softc {
|
||||
int32_t cid;
|
||||
@ -74,6 +74,12 @@ aesni_probe(device_t dev)
|
||||
device_printf(dev, "No AESNI support.\n");
|
||||
return (EINVAL);
|
||||
}
|
||||
|
||||
if ((cpu_feature & CPUID_SSE2) == 0) {
|
||||
device_printf(dev, "No SSE2 support but AESNI!?!\n");
|
||||
return (EINVAL);
|
||||
}
|
||||
|
||||
device_set_desc_copy(dev, "AES-CBC,AES-XTS");
|
||||
return (0);
|
||||
}
|
||||
|
||||
@ -71,12 +71,6 @@ struct aesni_session {
|
||||
/*
|
||||
* Internal functions, implemented in assembler.
|
||||
*/
|
||||
void aesni_enc(int rounds, const uint8_t *key_schedule,
|
||||
const uint8_t from[AES_BLOCK_LEN], uint8_t to[AES_BLOCK_LEN],
|
||||
const uint8_t iv[AES_BLOCK_LEN]);
|
||||
void aesni_dec(int rounds, const uint8_t *key_schedule,
|
||||
const uint8_t from[AES_BLOCK_LEN], uint8_t to[AES_BLOCK_LEN],
|
||||
const uint8_t iv[AES_BLOCK_LEN]);
|
||||
void aesni_set_enckey(const uint8_t *userkey, uint8_t *encrypt_schedule,
|
||||
int number_of_rounds);
|
||||
void aesni_set_deckey(const uint8_t *encrypt_schedule,
|
||||
@ -88,12 +82,19 @@ void aesni_set_deckey(const uint8_t *encrypt_schedule,
|
||||
void aesni_encrypt_cbc(int rounds, const void *key_schedule, size_t len,
|
||||
const uint8_t *from, uint8_t *to, const uint8_t iv[AES_BLOCK_LEN]);
|
||||
void aesni_decrypt_cbc(int rounds, const void *key_schedule, size_t len,
|
||||
const uint8_t *from, const uint8_t iv[AES_BLOCK_LEN]);
|
||||
uint8_t *buf, const uint8_t iv[AES_BLOCK_LEN]);
|
||||
void aesni_encrypt_ecb(int rounds, const void *key_schedule, size_t len,
|
||||
const uint8_t from[AES_BLOCK_LEN], uint8_t to[AES_BLOCK_LEN]);
|
||||
void aesni_decrypt_ecb(int rounds, const void *key_schedule, size_t len,
|
||||
const uint8_t from[AES_BLOCK_LEN], uint8_t to[AES_BLOCK_LEN]);
|
||||
|
||||
void aesni_encrypt_xts(int rounds, const void *data_schedule,
|
||||
const void *tweak_schedule, size_t len, const uint8_t *from, uint8_t *to,
|
||||
const uint8_t iv[AES_BLOCK_LEN]);
|
||||
void aesni_decrypt_xts(int rounds, const void *data_schedule,
|
||||
const void *tweak_schedule, size_t len, const uint8_t *from, uint8_t *to,
|
||||
const uint8_t iv[AES_BLOCK_LEN]);
|
||||
|
||||
int aesni_cipher_setup(struct aesni_session *ses,
|
||||
struct cryptoini *encini);
|
||||
int aesni_cipher_process(struct aesni_session *ses,
|
||||
|
||||
@ -2,6 +2,7 @@
|
||||
* Copyright (C) 2008 Damien Miller <djm@mindrot.org>
|
||||
* Copyright (c) 2010 Konstantin Belousov <kib@FreeBSD.org>
|
||||
* Copyright (c) 2010-2011 Pawel Jakub Dawidek <pawel@dawidek.net>
|
||||
* Copyright 2012-2013 John-Mark Gurney <jmg@FreeBSD.org>
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
@ -28,13 +29,15 @@
|
||||
|
||||
#include <sys/cdefs.h>
|
||||
__FBSDID("$FreeBSD$");
|
||||
|
||||
|
||||
#include <sys/param.h>
|
||||
#include <sys/libkern.h>
|
||||
#include <sys/malloc.h>
|
||||
#include <sys/proc.h>
|
||||
#include <sys/systm.h>
|
||||
#include <crypto/aesni/aesni.h>
|
||||
|
||||
#include "aesencdec.h"
|
||||
|
||||
MALLOC_DECLARE(M_AESNI);
|
||||
|
||||
@ -42,28 +45,78 @@ void
|
||||
aesni_encrypt_cbc(int rounds, const void *key_schedule, size_t len,
|
||||
const uint8_t *from, uint8_t *to, const uint8_t iv[AES_BLOCK_LEN])
|
||||
{
|
||||
const uint8_t *ivp;
|
||||
__m128i tot, ivreg;
|
||||
size_t i;
|
||||
|
||||
len /= AES_BLOCK_LEN;
|
||||
ivp = iv;
|
||||
ivreg = _mm_loadu_si128((const __m128i *)iv);
|
||||
for (i = 0; i < len; i++) {
|
||||
aesni_enc(rounds - 1, key_schedule, from, to, ivp);
|
||||
ivp = to;
|
||||
tot = aesni_enc(rounds - 1, key_schedule,
|
||||
_mm_loadu_si128((const __m128i *)from) ^ ivreg);
|
||||
ivreg = tot;
|
||||
_mm_storeu_si128((__m128i *)to, tot);
|
||||
from += AES_BLOCK_LEN;
|
||||
to += AES_BLOCK_LEN;
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
aesni_encrypt_ecb(int rounds, const void *key_schedule, size_t len,
|
||||
const uint8_t from[AES_BLOCK_LEN], uint8_t to[AES_BLOCK_LEN])
|
||||
aesni_decrypt_cbc(int rounds, const void *key_schedule, size_t len,
|
||||
uint8_t *buf, const uint8_t iv[AES_BLOCK_LEN])
|
||||
{
|
||||
size_t i;
|
||||
__m128i blocks[8];
|
||||
__m128i *bufs;
|
||||
__m128i ivreg, nextiv;
|
||||
size_t i, j, cnt;
|
||||
|
||||
len /= AES_BLOCK_LEN;
|
||||
for (i = 0; i < len; i++) {
|
||||
aesni_enc(rounds - 1, key_schedule, from, to, NULL);
|
||||
ivreg = _mm_loadu_si128((const __m128i *)iv);
|
||||
cnt = len / AES_BLOCK_LEN / 8;
|
||||
for (i = 0; i < cnt; i++) {
|
||||
bufs = (__m128i *)buf;
|
||||
aesni_dec8(rounds - 1, key_schedule, bufs[0], bufs[1],
|
||||
bufs[2], bufs[3], bufs[4], bufs[5], bufs[6],
|
||||
bufs[7], &blocks[0]);
|
||||
for (j = 0; j < 8; j++) {
|
||||
nextiv = bufs[j];
|
||||
bufs[j] = blocks[j] ^ ivreg;
|
||||
ivreg = nextiv;
|
||||
}
|
||||
buf += AES_BLOCK_LEN * 8;
|
||||
}
|
||||
i *= 8;
|
||||
cnt = len / AES_BLOCK_LEN;
|
||||
for (; i < cnt; i++) {
|
||||
bufs = (__m128i *)buf;
|
||||
nextiv = bufs[0];
|
||||
bufs[0] = aesni_dec(rounds - 1, key_schedule, bufs[0]) ^ ivreg;
|
||||
ivreg = nextiv;
|
||||
buf += AES_BLOCK_LEN;
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
aesni_encrypt_ecb(int rounds, const void *key_schedule, size_t len,
|
||||
const uint8_t *from, uint8_t *to)
|
||||
{
|
||||
__m128i tot;
|
||||
const __m128i *blocks;
|
||||
size_t i, cnt;
|
||||
|
||||
cnt = len / AES_BLOCK_LEN / 8;
|
||||
for (i = 0; i < cnt; i++) {
|
||||
blocks = (const __m128i *)from;
|
||||
aesni_enc8(rounds - 1, key_schedule, blocks[0], blocks[1],
|
||||
blocks[2], blocks[3], blocks[4], blocks[5], blocks[6],
|
||||
blocks[7], (__m128i *)to);
|
||||
from += AES_BLOCK_LEN * 8;
|
||||
to += AES_BLOCK_LEN * 8;
|
||||
}
|
||||
i *= 8;
|
||||
cnt = len / AES_BLOCK_LEN;
|
||||
for (; i < cnt; i++) {
|
||||
tot = aesni_enc(rounds - 1, key_schedule,
|
||||
_mm_loadu_si128((const __m128i *)from));
|
||||
_mm_storeu_si128((__m128i *)to, tot);
|
||||
from += AES_BLOCK_LEN;
|
||||
to += AES_BLOCK_LEN;
|
||||
}
|
||||
@ -73,11 +126,25 @@ void
|
||||
aesni_decrypt_ecb(int rounds, const void *key_schedule, size_t len,
|
||||
const uint8_t from[AES_BLOCK_LEN], uint8_t to[AES_BLOCK_LEN])
|
||||
{
|
||||
size_t i;
|
||||
__m128i tot;
|
||||
const __m128i *blocks;
|
||||
size_t i, cnt;
|
||||
|
||||
len /= AES_BLOCK_LEN;
|
||||
for (i = 0; i < len; i++) {
|
||||
aesni_dec(rounds - 1, key_schedule, from, to, NULL);
|
||||
cnt = len / AES_BLOCK_LEN / 8;
|
||||
for (i = 0; i < cnt; i++) {
|
||||
blocks = (const __m128i *)from;
|
||||
aesni_dec8(rounds - 1, key_schedule, blocks[0], blocks[1],
|
||||
blocks[2], blocks[3], blocks[4], blocks[5], blocks[6],
|
||||
blocks[7], (__m128i *)to);
|
||||
from += AES_BLOCK_LEN * 8;
|
||||
to += AES_BLOCK_LEN * 8;
|
||||
}
|
||||
i *= 8;
|
||||
cnt = len / AES_BLOCK_LEN;
|
||||
for (; i < cnt; i++) {
|
||||
tot = aesni_dec(rounds - 1, key_schedule,
|
||||
_mm_loadu_si128((const __m128i *)from));
|
||||
_mm_storeu_si128((__m128i *)to, tot);
|
||||
from += AES_BLOCK_LEN;
|
||||
to += AES_BLOCK_LEN;
|
||||
}
|
||||
@ -87,34 +154,88 @@ aesni_decrypt_ecb(int rounds, const void *key_schedule, size_t len,
|
||||
#define AES_XTS_IVSIZE 8
|
||||
#define AES_XTS_ALPHA 0x87 /* GF(2^128) generator polynomial */
|
||||
|
||||
static void
|
||||
aesni_crypt_xts_block(int rounds, const void *key_schedule, uint64_t *tweak,
|
||||
const uint64_t *from, uint64_t *to, uint64_t *block, int do_encrypt)
|
||||
static inline __m128i
|
||||
xts_crank_lfsr(__m128i inp)
|
||||
{
|
||||
int carry;
|
||||
const __m128i alphamask = _mm_set_epi32(1, 1, 1, AES_XTS_ALPHA);
|
||||
__m128i xtweak, ret;
|
||||
|
||||
block[0] = from[0] ^ tweak[0];
|
||||
block[1] = from[1] ^ tweak[1];
|
||||
/* set up xor mask */
|
||||
xtweak = _mm_shuffle_epi32(inp, 0x93);
|
||||
xtweak = _mm_srai_epi32(xtweak, 31);
|
||||
xtweak &= alphamask;
|
||||
|
||||
/* next term */
|
||||
ret = _mm_slli_epi32(inp, 1);
|
||||
ret ^= xtweak;
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static void
|
||||
aesni_crypt_xts_block(int rounds, const void *key_schedule, __m128i *tweak,
|
||||
const __m128i *from, __m128i *to, int do_encrypt)
|
||||
{
|
||||
__m128i block;
|
||||
|
||||
block = *from ^ *tweak;
|
||||
|
||||
if (do_encrypt)
|
||||
aesni_enc(rounds - 1, key_schedule, (uint8_t *)block, (uint8_t *)to, NULL);
|
||||
block = aesni_enc(rounds - 1, key_schedule, block);
|
||||
else
|
||||
aesni_dec(rounds - 1, key_schedule, (uint8_t *)block, (uint8_t *)to, NULL);
|
||||
block = aesni_dec(rounds - 1, key_schedule, block);
|
||||
|
||||
to[0] ^= tweak[0];
|
||||
to[1] ^= tweak[1];
|
||||
*to = block ^ *tweak;
|
||||
|
||||
/* Exponentiate tweak. */
|
||||
carry = ((tweak[0] & 0x8000000000000000ULL) > 0);
|
||||
tweak[0] <<= 1;
|
||||
if (tweak[1] & 0x8000000000000000ULL) {
|
||||
uint8_t *twk = (uint8_t *)tweak;
|
||||
*tweak = xts_crank_lfsr(*tweak);
|
||||
}
|
||||
|
||||
twk[0] ^= AES_XTS_ALPHA;
|
||||
}
|
||||
tweak[1] <<= 1;
|
||||
if (carry)
|
||||
tweak[1] |= 1;
|
||||
static void
|
||||
aesni_crypt_xts_block8(int rounds, const void *key_schedule, __m128i *tweak,
|
||||
const __m128i *from, __m128i *to, int do_encrypt)
|
||||
{
|
||||
__m128i tmptweak;
|
||||
__m128i a, b, c, d, e, f, g, h;
|
||||
__m128i tweaks[8];
|
||||
__m128i tmp[8];
|
||||
|
||||
tmptweak = *tweak;
|
||||
|
||||
/*
|
||||
* unroll the loop. This lets gcc put values directly in the
|
||||
* register and saves memory accesses.
|
||||
*/
|
||||
#define PREPINP(v, pos) \
|
||||
do { \
|
||||
tweaks[(pos)] = tmptweak; \
|
||||
(v) = from[(pos)] ^ tmptweak; \
|
||||
tmptweak = xts_crank_lfsr(tmptweak); \
|
||||
} while (0)
|
||||
PREPINP(a, 0);
|
||||
PREPINP(b, 1);
|
||||
PREPINP(c, 2);
|
||||
PREPINP(d, 3);
|
||||
PREPINP(e, 4);
|
||||
PREPINP(f, 5);
|
||||
PREPINP(g, 6);
|
||||
PREPINP(h, 7);
|
||||
*tweak = tmptweak;
|
||||
|
||||
if (do_encrypt)
|
||||
aesni_enc8(rounds - 1, key_schedule, a, b, c, d, e, f, g, h,
|
||||
tmp);
|
||||
else
|
||||
aesni_dec8(rounds - 1, key_schedule, a, b, c, d, e, f, g, h,
|
||||
tmp);
|
||||
|
||||
to[0] = tmp[0] ^ tweaks[0];
|
||||
to[1] = tmp[1] ^ tweaks[1];
|
||||
to[2] = tmp[2] ^ tweaks[2];
|
||||
to[3] = tmp[3] ^ tweaks[3];
|
||||
to[4] = tmp[4] ^ tweaks[4];
|
||||
to[5] = tmp[5] ^ tweaks[5];
|
||||
to[6] = tmp[6] ^ tweaks[6];
|
||||
to[7] = tmp[7] ^ tweaks[7];
|
||||
}
|
||||
|
||||
static void
|
||||
@ -122,9 +243,9 @@ aesni_crypt_xts(int rounds, const void *data_schedule,
|
||||
const void *tweak_schedule, size_t len, const uint8_t *from, uint8_t *to,
|
||||
const uint8_t iv[AES_BLOCK_LEN], int do_encrypt)
|
||||
{
|
||||
uint64_t block[AES_XTS_BLOCKSIZE / 8];
|
||||
uint8_t tweak[AES_XTS_BLOCKSIZE];
|
||||
size_t i;
|
||||
__m128i tweakreg;
|
||||
uint8_t tweak[AES_XTS_BLOCKSIZE] __aligned(16);
|
||||
size_t i, cnt;
|
||||
|
||||
/*
|
||||
* Prepare tweak as E_k2(IV). IV is specified as LE representation
|
||||
@ -137,21 +258,27 @@ aesni_crypt_xts(int rounds, const void *data_schedule,
|
||||
#else
|
||||
#error Only LITTLE_ENDIAN architectures are supported.
|
||||
#endif
|
||||
aesni_enc(rounds - 1, tweak_schedule, tweak, tweak, NULL);
|
||||
tweakreg = _mm_loadu_si128((__m128i *)&tweak[0]);
|
||||
tweakreg = aesni_enc(rounds - 1, tweak_schedule, tweakreg);
|
||||
|
||||
len /= AES_XTS_BLOCKSIZE;
|
||||
for (i = 0; i < len; i++) {
|
||||
aesni_crypt_xts_block(rounds, data_schedule, (uint64_t *)tweak,
|
||||
(const uint64_t *)from, (uint64_t *)to, block, do_encrypt);
|
||||
cnt = len / AES_XTS_BLOCKSIZE / 8;
|
||||
for (i = 0; i < cnt; i++) {
|
||||
aesni_crypt_xts_block8(rounds, data_schedule, &tweakreg,
|
||||
(const __m128i *)from, (__m128i *)to, do_encrypt);
|
||||
from += AES_XTS_BLOCKSIZE * 8;
|
||||
to += AES_XTS_BLOCKSIZE * 8;
|
||||
}
|
||||
i *= 8;
|
||||
cnt = len / AES_XTS_BLOCKSIZE;
|
||||
for (; i < cnt; i++) {
|
||||
aesni_crypt_xts_block(rounds, data_schedule, &tweakreg,
|
||||
(const __m128i *)from, (__m128i *)to, do_encrypt);
|
||||
from += AES_XTS_BLOCKSIZE;
|
||||
to += AES_XTS_BLOCKSIZE;
|
||||
}
|
||||
|
||||
bzero(tweak, sizeof(tweak));
|
||||
bzero(block, sizeof(block));
|
||||
}
|
||||
|
||||
static void
|
||||
void
|
||||
aesni_encrypt_xts(int rounds, const void *data_schedule,
|
||||
const void *tweak_schedule, size_t len, const uint8_t *from, uint8_t *to,
|
||||
const uint8_t iv[AES_BLOCK_LEN])
|
||||
@ -161,7 +288,7 @@ aesni_encrypt_xts(int rounds, const void *data_schedule,
|
||||
iv, 1);
|
||||
}
|
||||
|
||||
static void
|
||||
void
|
||||
aesni_decrypt_xts(int rounds, const void *data_schedule,
|
||||
const void *tweak_schedule, size_t len, const uint8_t *from, uint8_t *to,
|
||||
const uint8_t iv[AES_BLOCK_LEN])
|
||||
|
||||
@ -3,8 +3,17 @@
|
||||
.PATH: ${.CURDIR}/../../crypto/aesni
|
||||
|
||||
KMOD= aesni
|
||||
SRCS= aesni.c aesni_wrap.c
|
||||
SRCS+= aesencdec_${MACHINE_CPUARCH}.S aeskeys_${MACHINE_CPUARCH}.S
|
||||
SRCS= aesni.c
|
||||
SRCS+= aeskeys_${MACHINE_CPUARCH}.S
|
||||
SRCS+= device_if.h bus_if.h opt_bus.h cryptodev_if.h
|
||||
|
||||
OBJS+= aesni_wrap.o
|
||||
|
||||
# Remove -nostdinc so we can get the intrinsics.
|
||||
aesni_wrap.o: aesni_wrap.c
|
||||
${CC} -c ${CFLAGS:C/^-O2$/-O3/:N-nostdinc} ${WERROR} ${PROF} \
|
||||
-mmmx -msse -maes ${.IMPSRC}
|
||||
${CTFCONVERT_CMD}
|
||||
|
||||
.include <bsd.kmod.mk>
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user