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-rw-r--r--arch/x86/crypto/Makefile3
-rw-r--r--arch/x86/crypto/aesni-intel_asm.S517
-rw-r--r--arch/x86/crypto/ghash-clmulni-intel_asm.S157
-rw-r--r--arch/x86/crypto/ghash-clmulni-intel_glue.c333
-rw-r--r--arch/x86/include/asm/cpufeature.h1
-rw-r--r--arch/x86/include/asm/i387.h7
-rw-r--r--arch/x86/include/asm/inst.h150
-rw-r--r--crypto/Kconfig9
-rw-r--r--crypto/ansi_cprng.c82
-rw-r--r--crypto/cryptd.c7
-rw-r--r--crypto/digest.c240
-rw-r--r--crypto/hash.c183
-rw-r--r--crypto/proc.c7
-rw-r--r--crypto/testmgr.c11
-rw-r--r--crypto/testmgr.h15
-rw-r--r--drivers/char/hw_random/core.c108
-rw-r--r--drivers/char/hw_random/virtio-rng.c78
-rw-r--r--include/crypto/algapi.h1
-rw-r--r--include/crypto/cryptd.h1
-rw-r--r--include/linux/crypto.h27
-rw-r--r--include/linux/hw_random.h7
21 files changed, 1033 insertions, 911 deletions
diff --git a/arch/x86/crypto/Makefile b/arch/x86/crypto/Makefile
index cfb0010fa94..1a58ad89fdf 100644
--- a/arch/x86/crypto/Makefile
+++ b/arch/x86/crypto/Makefile
@@ -12,6 +12,7 @@ obj-$(CONFIG_CRYPTO_AES_X86_64) += aes-x86_64.o
obj-$(CONFIG_CRYPTO_TWOFISH_X86_64) += twofish-x86_64.o
obj-$(CONFIG_CRYPTO_SALSA20_X86_64) += salsa20-x86_64.o
obj-$(CONFIG_CRYPTO_AES_NI_INTEL) += aesni-intel.o
+obj-$(CONFIG_CRYPTO_GHASH_CLMUL_NI_INTEL) += ghash-clmulni-intel.o
obj-$(CONFIG_CRYPTO_CRC32C_INTEL) += crc32c-intel.o
@@ -24,3 +25,5 @@ twofish-x86_64-y := twofish-x86_64-asm_64.o twofish_glue.o
salsa20-x86_64-y := salsa20-x86_64-asm_64.o salsa20_glue.o
aesni-intel-y := aesni-intel_asm.o aesni-intel_glue.o
+
+ghash-clmulni-intel-y := ghash-clmulni-intel_asm.o ghash-clmulni-intel_glue.o
diff --git a/arch/x86/crypto/aesni-intel_asm.S b/arch/x86/crypto/aesni-intel_asm.S
index eb0566e8331..20bb0e1ac68 100644
--- a/arch/x86/crypto/aesni-intel_asm.S
+++ b/arch/x86/crypto/aesni-intel_asm.S
@@ -16,6 +16,7 @@
*/
#include <linux/linkage.h>
+#include <asm/inst.h>
.text
@@ -122,103 +123,72 @@ ENTRY(aesni_set_key)
movups 0x10(%rsi), %xmm2 # other user key
movaps %xmm2, (%rcx)
add $0x10, %rcx
- # 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
jmp .Ldec_key
.Lenc_key192:
movq 0x10(%rsi), %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
jmp .Ldec_key
.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
.Ldec_key:
sub $0x10, %rcx
@@ -231,8 +201,7 @@ ENTRY(aesni_set_key)
.align 4
.Ldec_key_loop:
movaps (%rdi), %xmm0
- # aesimc %xmm0, %xmm1
- .byte 0x66, 0x0f, 0x38, 0xdb, 0xc8
+ AESIMC %xmm0 %xmm1
movaps %xmm1, (%rsi)
add $0x10, %rdi
sub $0x10, %rsi
@@ -274,51 +243,37 @@ _aesni_enc1:
je .Lenc192
add $0x20, TKEYP
movaps -0x60(TKEYP), KEY
- # aesenc KEY, STATE
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xc2
+ AESENC KEY STATE
movaps -0x50(TKEYP), KEY
- # aesenc KEY, STATE
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xc2
+ AESENC KEY STATE
.align 4
.Lenc192:
movaps -0x40(TKEYP), KEY
- # aesenc KEY, STATE
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xc2
+ AESENC KEY STATE
movaps -0x30(TKEYP), KEY
- # aesenc KEY, STATE
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xc2
+ AESENC KEY STATE
.align 4
.Lenc128:
movaps -0x20(TKEYP), KEY
- # aesenc KEY, STATE
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xc2
+ AESENC KEY STATE
movaps -0x10(TKEYP), KEY
- # aesenc KEY, STATE
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xc2
+ AESENC KEY STATE
movaps (TKEYP), KEY
- # aesenc KEY, STATE
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xc2
+ AESENC KEY STATE
movaps 0x10(TKEYP), KEY
- # aesenc KEY, STATE
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xc2
+ AESENC KEY STATE
movaps 0x20(TKEYP), KEY
- # aesenc KEY, STATE
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xc2
+ AESENC KEY STATE
movaps 0x30(TKEYP), KEY
- # aesenc KEY, STATE
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xc2
+ AESENC KEY STATE
movaps 0x40(TKEYP), KEY
- # aesenc KEY, STATE
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xc2
+ AESENC KEY STATE
movaps 0x50(TKEYP), KEY
- # aesenc KEY, STATE
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xc2
+ AESENC KEY STATE
movaps 0x60(TKEYP), KEY
- # aesenc KEY, STATE
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xc2
+ AESENC KEY STATE
movaps 0x70(TKEYP), KEY
- # aesenclast KEY, STATE # last round
- .byte 0x66, 0x0f, 0x38, 0xdd, 0xc2
+ AESENCLAST KEY STATE
ret
/*
@@ -353,135 +308,79 @@ _aesni_enc4:
je .L4enc192
add $0x20, TKEYP
movaps -0x60(TKEYP), KEY
- # aesenc KEY, STATE1
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xc2
- # aesenc KEY, STATE2
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xe2
- # aesenc KEY, STATE3
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xea
- # aesenc KEY, STATE4
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xf2
+ AESENC KEY STATE1
+ AESENC KEY STATE2
+ AESENC KEY STATE3
+ AESENC KEY STATE4
movaps -0x50(TKEYP), KEY
- # aesenc KEY, STATE1
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xc2
- # aesenc KEY, STATE2
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xe2
- # aesenc KEY, STATE3
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xea
- # aesenc KEY, STATE4
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xf2
+ AESENC KEY STATE1
+ AESENC KEY STATE2
+ AESENC KEY STATE3
+ AESENC KEY STATE4
#.align 4
.L4enc192:
movaps -0x40(TKEYP), KEY
- # aesenc KEY, STATE1
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xc2
- # aesenc KEY, STATE2
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xe2
- # aesenc KEY, STATE3
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xea
- # aesenc KEY, STATE4
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xf2
+ AESENC KEY STATE1
+ AESENC KEY STATE2
+ AESENC KEY STATE3
+ AESENC KEY STATE4
movaps -0x30(TKEYP), KEY
- # aesenc KEY, STATE1
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xc2
- # aesenc KEY, STATE2
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xe2
- # aesenc KEY, STATE3
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xea
- # aesenc KEY, STATE4
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xf2
+ AESENC KEY STATE1
+ AESENC KEY STATE2
+ AESENC KEY STATE3
+ AESENC KEY STATE4
#.align 4
.L4enc128:
movaps -0x20(TKEYP), KEY
- # aesenc KEY, STATE1
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xc2
- # aesenc KEY, STATE2
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xe2
- # aesenc KEY, STATE3
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xea
- # aesenc KEY, STATE4
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xf2
+ AESENC KEY STATE1
+ AESENC KEY STATE2
+ AESENC KEY STATE3
+ AESENC KEY STATE4
movaps -0x10(TKEYP), KEY
- # aesenc KEY, STATE1
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xc2
- # aesenc KEY, STATE2
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xe2
- # aesenc KEY, STATE3
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xea
- # aesenc KEY, STATE4
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xf2
+ AESENC KEY STATE1
+ AESENC KEY STATE2
+ AESENC KEY STATE3
+ AESENC KEY STATE4
movaps (TKEYP), KEY
- # aesenc KEY, STATE1
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xc2
- # aesenc KEY, STATE2
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xe2
- # aesenc KEY, STATE3
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xea
- # aesenc KEY, STATE4
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xf2
+ AESENC KEY STATE1
+ AESENC KEY STATE2
+ AESENC KEY STATE3
+ AESENC KEY STATE4
movaps 0x10(TKEYP), KEY
- # aesenc KEY, STATE1
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xc2
- # aesenc KEY, STATE2
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xe2
- # aesenc KEY, STATE3
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xea
- # aesenc KEY, STATE4
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xf2
+ AESENC KEY STATE1
+ AESENC KEY STATE2
+ AESENC KEY STATE3
+ AESENC KEY STATE4
movaps 0x20(TKEYP), KEY
- # aesenc KEY, STATE1
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xc2
- # aesenc KEY, STATE2
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xe2
- # aesenc KEY, STATE3
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xea
- # aesenc KEY, STATE4
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xf2
+ AESENC KEY STATE1
+ AESENC KEY STATE2
+ AESENC KEY STATE3
+ AESENC KEY STATE4
movaps 0x30(TKEYP), KEY
- # aesenc KEY, STATE1
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xc2
- # aesenc KEY, STATE2
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xe2
- # aesenc KEY, STATE3
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xea
- # aesenc KEY, STATE4
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xf2
+ AESENC KEY STATE1
+ AESENC KEY STATE2
+ AESENC KEY STATE3
+ AESENC KEY STATE4
movaps 0x40(TKEYP), KEY
- # aesenc KEY, STATE1
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xc2
- # aesenc KEY, STATE2
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xe2
- # aesenc KEY, STATE3
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xea
- # aesenc KEY, STATE4
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xf2
+ AESENC KEY STATE1
+ AESENC KEY STATE2
+ AESENC KEY STATE3
+ AESENC KEY STATE4
movaps 0x50(TKEYP), KEY
- # aesenc KEY, STATE1
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xc2
- # aesenc KEY, STATE2
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xe2
- # aesenc KEY, STATE3
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xea
- # aesenc KEY, STATE4
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xf2
+ AESENC KEY STATE1
+ AESENC KEY STATE2
+ AESENC KEY STATE3
+ AESENC KEY STATE4
movaps 0x60(TKEYP), KEY
- # aesenc KEY, STATE1
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xc2
- # aesenc KEY, STATE2
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xe2
- # aesenc KEY, STATE3
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xea
- # aesenc KEY, STATE4
- .byte 0x66, 0x0f, 0x38, 0xdc, 0xf2
+ AESENC KEY STATE1
+ AESENC KEY STATE2
+ AESENC KEY STATE3
+ AESENC KEY STATE4
movaps 0x70(TKEYP), KEY
- # aesenclast KEY, STATE1 # last round
- .byte 0x66, 0x0f, 0x38, 0xdd, 0xc2
- # aesenclast KEY, STATE2
- .byte 0x66, 0x0f, 0x38, 0xdd, 0xe2
- # aesenclast KEY, STATE3
- .byte 0x66, 0x0f, 0x38, 0xdd, 0xea
- # aesenclast KEY, STATE4
- .byte 0x66, 0x0f, 0x38, 0xdd, 0xf2
+ AESENCLAST KEY STATE1 # last round
+ AESENCLAST KEY STATE2
+ AESENCLAST KEY STATE3
+ AESENCLAST KEY STATE4
ret
/*
@@ -518,51 +417,37 @@ _aesni_dec1:
je .Ldec192
add $0x20, TKEYP
movaps -0x60(TKEYP), KEY
- # aesdec KEY, STATE
- .byte 0x66, 0x0f, 0x38, 0xde, 0xc2
+ AESDEC KEY STATE
movaps -0x50(TKEYP), KEY
- # aesdec KEY, STATE
- .byte 0x66, 0x0f, 0x38, 0xde, 0xc2
+ AESDEC KEY STATE
.align 4
.Ldec192:
movaps -0x40(TKEYP), KEY
- # aesdec KEY, STATE
- .byte 0x66, 0x0f, 0x38, 0xde, 0xc2
+ AESDEC KEY STATE
movaps -0x30(TKEYP), KEY
- # aesdec KEY, STATE
- .byte 0x66, 0x0f, 0x38, 0xde, 0xc2
+ AESDEC KEY STATE
.align 4
.Ldec128:
movaps -0x20(TKEYP), KEY
- # aesdec KEY, STATE
- .byte 0x66, 0x0f, 0x38, 0xde, 0xc2
+ AESDEC KEY STATE
movaps -0x10(TKEYP), KEY
- # aesdec KEY, STATE
- .byte 0x66, 0x0f, 0x38, 0xde, 0xc2
+ AESDEC KEY STATE
movaps (TKEYP), KEY
- # aesdec KEY, STATE
- .byte 0x66, 0x0f, 0x38, 0xde, 0xc2
+ AESDEC KEY STATE
movaps 0x10(TKEYP), KEY
- # aesdec KEY, STATE
- .byte 0x66, 0x0f, 0x38, 0xde, 0xc2
+ AESDEC KEY STATE
movaps 0x20(TKEYP), KEY
- # aesdec KEY, STATE
- .byte 0x66, 0x0f, 0x38, 0xde, 0xc2
+ AESDEC KEY STATE
movaps 0x30(TKEYP), KEY
- # aesdec KEY, STATE
- .byte 0x66, 0x0f, 0x38, 0xde, 0xc2
+ AESDEC KEY STATE
movaps 0x40(TKEYP), KEY
- # aesdec KEY, STATE
- .byte 0x66, 0x0f, 0x38, 0xde, 0xc2
+ AESDEC KEY STATE
movaps 0x50(TKEYP), KEY
- # aesdec KEY, STATE
- .byte 0x66, 0x0f, 0x38, 0xde, 0xc2
+ AESDEC KEY STATE
movaps 0x60(TKEYP), KEY
- # aesdec KEY, STATE
- .byte 0x66, 0x0f, 0x38, 0xde, 0xc2
+ AESDEC KEY STATE
movaps 0x70(TKEYP), KEY
- # aesdeclast KEY, STATE # last round
- .byte 0x66, 0x0f, 0x38, 0xdf, 0xc2
+ AESDECLAST KEY STATE
ret
/*
@@ -597,135 +482,79 @@ _aesni_dec4:
je .L4dec192
add $0x20, TKEYP
movaps -0x60(TKEYP), KEY
- # aesdec KEY, STATE1
- .byte 0x66, 0x0f, 0x38, 0xde, 0xc2
- # aesdec KEY, STATE2
- .byte 0x66, 0x0f, 0x38, 0xde, 0xe2
- # aesdec KEY, STATE3
- .byte 0x66, 0x0f, 0x38, 0xde, 0xea
- # aesdec KEY, STATE4
- .byte 0x66, 0x0f, 0x38, 0xde, 0xf2
+ AESDEC KEY STATE1
+ AESDEC KEY STATE2
+ AESDEC KEY STATE3
+ AESDEC KEY STATE4
movaps -0x50(TKEYP), KEY
- # aesdec KEY, STATE1
- .byte 0x66, 0x0f, 0x38, 0xde, 0xc2
- # aesdec KEY, STATE2
- .byte 0x66, 0x0f, 0x38, 0xde, 0xe2
- # aesdec KEY, STATE3
- .byte 0x66, 0x0f, 0x38, 0xde, 0xea
- # aesdec KEY, STATE4
- .byte 0x66, 0x0f, 0x38, 0xde, 0xf2
+ AESDEC KEY STATE1
+ AESDEC KEY STATE2
+ AESDEC KEY STATE3
+ AESDEC KEY STATE4
.align 4
.L4dec192:
movaps -0x40(TKEYP), KEY
- # aesdec KEY, STATE1
- .byte 0x66, 0x0f, 0x38, 0xde, 0xc2
- # aesdec KEY, STATE2
- .byte 0x66, 0x0f, 0x38, 0xde, 0xe2
- # aesdec KEY, STATE3
- .byte 0x66, 0x0f, 0x38, 0xde, 0xea
- # aesdec KEY, STATE4
- .byte 0x66, 0x0f, 0x38, 0xde, 0xf2
+ AESDEC KEY STATE1
+ AESDEC KEY STATE2
+ AESDEC KEY STATE3
+ AESDEC KEY STATE4
movaps -0x30(TKEYP), KEY
- # aesdec KEY, STATE1
- .byte 0x66, 0x0f, 0x38, 0xde, 0xc2
- # aesdec KEY, STATE2
- .byte 0x66, 0x0f, 0x38, 0xde, 0xe2
- # aesdec KEY, STATE3
- .byte 0x66, 0x0f, 0x38, 0xde, 0xea
- # aesdec KEY, STATE4
- .byte 0x66, 0x0f, 0x38, 0xde, 0xf2
+ AESDEC KEY STATE1
+ AESDEC KEY STATE2
+ AESDEC KEY STATE3
+ AESDEC KEY STATE4
.align 4
.L4dec128:
movaps -0x20(TKEYP), KEY
- # aesdec KEY, STATE1
- .byte 0x66, 0x0f, 0x38, 0xde, 0xc2
- # aesdec KEY, STATE2
- .byte 0x66, 0x0f, 0x38, 0xde, 0xe2
- # aesdec KEY, STATE3
- .byte 0x66, 0x0f, 0x38, 0xde, 0xea
- # aesdec KEY, STATE4
- .byte 0x66, 0x0f, 0x38, 0xde, 0xf2
+ AESDEC KEY STATE1
+ AESDEC KEY STATE2
+ AESDEC KEY STATE3
+ AESDEC KEY STATE4
movaps -0x10(TKEYP), KEY
- # aesdec KEY, STATE1
- .byte 0x66, 0x0f, 0x38, 0xde, 0xc2
- # aesdec KEY, STATE2
- .byte 0x66, 0x0f, 0x38, 0xde, 0xe2
- # aesdec KEY, STATE3
- .byte 0x66, 0x0f, 0x38, 0xde, 0xea
- # aesdec KEY, STATE4
- .byte 0x66, 0x0f, 0x38, 0xde, 0xf2
+ AESDEC KEY STATE1
+ AESDEC KEY STATE2
+ AESDEC KEY STATE3
+ AESDEC KEY STATE4
movaps (TKEYP), KEY
- # aesdec KEY, STATE1
- .byte 0x66, 0x0f, 0x38, 0xde, 0xc2
- # aesdec KEY, STATE2
- .byte 0x66, 0x0f, 0x38, 0xde, 0xe2
- # aesdec KEY, STATE3
- .byte 0x66, 0x0f, 0x38, 0xde, 0xea
- # aesdec KEY, STATE4
- .byte 0x66, 0x0f, 0x38, 0xde, 0xf2
+ AESDEC KEY STATE1
+ AESDEC KEY STATE2
+ AESDEC KEY STATE3
+ AESDEC KEY STATE4
movaps 0x10(TKEYP), KEY
- # aesdec KEY, STATE1
- .byte 0x66, 0x0f, 0x38, 0xde, 0xc2
- # aesdec KEY, STATE2
- .byte 0x66, 0x0f, 0x38, 0xde, 0xe2
- # aesdec KEY, STATE3
- .byte 0x66, 0x0f, 0x38, 0xde, 0xea
- # aesdec KEY, STATE4
- .byte 0x66, 0x0f, 0x38, 0xde, 0xf2
+ AESDEC KEY STATE1
+ AESDEC KEY STATE2
+ AESDEC KEY STATE3
+ AESDEC KEY STATE4
movaps 0x20(TKEYP), KEY
- # aesdec KEY, STATE1
- .byte 0x66, 0x0f, 0x38, 0xde, 0xc2
- # aesdec KEY, STATE2
- .byte 0x66, 0x0f, 0x38, 0xde, 0xe2
- # aesdec KEY, STATE3
- .byte 0x66, 0x0f, 0x38, 0xde, 0xea
- # aesdec KEY, STATE4
- .byte 0x66, 0x0f, 0x38, 0xde, 0xf2
+ AESDEC KEY STATE1
+ AESDEC KEY STATE2
+ AESDEC KEY STATE3
+ AESDEC KEY STATE4
movaps 0x30(TKEYP), KEY
- # aesdec KEY, STATE1
- .byte 0x66, 0x0f, 0x38, 0xde, 0xc2
- # aesdec KEY, STATE2
- .byte 0x66, 0x0f, 0x38, 0xde, 0xe2
- # aesdec KEY, STATE3
- .byte 0x66, 0x0f, 0x38, 0xde, 0xea
- # aesdec KEY, STATE4
- .byte 0x66, 0x0f, 0x38, 0xde, 0xf2
+ AESDEC KEY STATE1
+ AESDEC KEY STATE2
+ AESDEC KEY STATE3
+ AESDEC KEY STATE4
movaps 0x40(TKEYP), KEY
- # aesdec KEY, STATE1
- .byte 0x66, 0x0f, 0x38, 0xde, 0xc2
- # aesdec KEY, STATE2
- .byte 0x66, 0x0f, 0x38, 0xde, 0xe2
- # aesdec KEY, STATE3
- .byte 0x66, 0x0f, 0x38, 0xde, 0xea
- # aesdec KEY, STATE4
- .byte 0x66, 0x0f, 0x38, 0xde, 0xf2
+ AESDEC KEY STATE1
+ AESDEC KEY STATE2
+ AESDEC KEY STATE3
+ AESDEC KEY STATE4
movaps 0x50(TKEYP), KEY
- # aesdec KEY, STATE1
- .byte 0x66, 0x0f, 0x38, 0xde, 0xc2
- # aesdec KEY, STATE2
- .byte 0x66, 0x0f, 0x38, 0xde, 0xe2
- # aesdec KEY, STATE3
- .byte 0x66, 0x0f, 0x38, 0xde, 0xea
- # aesdec KEY, STATE4
- .byte 0x66, 0x0f, 0x38, 0xde, 0xf2
+ AESDEC KEY STATE1
+ AESDEC KEY STATE2
+ AESDEC KEY STATE3
+ AESDEC KEY STATE4
movaps 0x60(TKEYP), KEY
- # aesdec KEY, STATE1
- .byte 0x66, 0x0f, 0x38, 0xde, 0xc2
- # aesdec KEY, STATE2
- .byte 0x66, 0x0f, 0x38, 0xde, 0xe2
- # aesdec KEY, STATE3
- .byte 0x66, 0x0f, 0x38, 0xde, 0xea
- # aesdec KEY, STATE4
- .byte 0x66, 0x0f, 0x38, 0xde, 0xf2
+ AESDEC KEY STATE1
+ AESDEC KEY STATE2
+ AESDEC KEY STATE3
+ AESDEC KEY STATE4
movaps 0x70(TKEYP), KEY
- # aesdeclast KEY, STATE1 # last round
- .byte 0x66, 0x0f, 0x38, 0xdf, 0xc2
- # aesdeclast KEY, STATE2
- .byte 0x66, 0x0f, 0x38, 0xdf, 0xe2
- # aesdeclast KEY, STATE3
- .byte 0x66, 0x0f, 0x38, 0xdf, 0xea
- # aesdeclast KEY, STATE4
- .byte 0x66, 0x0f, 0x38, 0xdf, 0xf2
+ AESDECLAST KEY STATE1 # last round
+ AESDECLAST KEY STATE2
+ AESDECLAST KEY STATE3
+ AESDECLAST KEY STATE4
ret
/*
diff --git a/arch/x86/crypto/ghash-clmulni-intel_asm.S b/arch/x86/crypto/ghash-clmulni-intel_asm.S
new file mode 100644
index 00000000000..1eb7f90cb7b
--- /dev/null
+++ b/arch/x86/crypto/ghash-clmulni-intel_asm.S
@@ -0,0 +1,157 @@
+/*
+ * Accelerated GHASH implementation with Intel PCLMULQDQ-NI
+ * instructions. This file contains accelerated part of ghash
+ * implementation. More information about PCLMULQDQ can be found at:
+ *
+ * http://software.intel.com/en-us/articles/carry-less-multiplication-and-its-usage-for-computing-the-gcm-mode/
+ *
+ * Copyright (c) 2009 Intel Corp.
+ * Author: Huang Ying <ying.huang@intel.com>
+ * Vinodh Gopal
+ * Erdinc Ozturk
+ * Deniz Karakoyunlu
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+
+#include <linux/linkage.h>
+#include <asm/inst.h>
+
+.data
+
+.align 16
+.Lbswap_mask:
+ .octa 0x000102030405060708090a0b0c0d0e0f
+.Lpoly:
+ .octa 0xc2000000000000000000000000000001
+.Ltwo_one:
+ .octa 0x00000001000000000000000000000001
+
+#define DATA %xmm0
+#define SHASH %xmm1
+#define T1 %xmm2
+#define T2 %xmm3
+#define T3 %xmm4
+#define BSWAP %xmm5
+#define IN1 %xmm6
+
+.text
+
+/*
+ * __clmul_gf128mul_ble: internal ABI
+ * input:
+ * DATA: operand1
+ * SHASH: operand2, hash_key << 1 mod poly
+ * output:
+ * DATA: operand1 * operand2 mod poly
+ * changed:
+ * T1
+ * T2
+ * T3
+ */
+__clmul_gf128mul_ble:
+ movaps DATA, T1
+ pshufd $0b01001110, DATA, T2
+ pshufd $0b01001110, SHASH, T3
+ pxor DATA, T2
+ pxor SHASH, T3
+
+ PCLMULQDQ 0x00 SHASH DATA # DATA = a0 * b0
+ PCLMULQDQ 0x11 SHASH T1 # T1 = a1 * b1
+ PCLMULQDQ 0x00 T3 T2 # T2 = (a1 + a0) * (b1 + b0)
+ pxor DATA, T2
+ pxor T1, T2 # T2 = a0 * b1 + a1 * b0
+
+ movaps T2, T3
+ pslldq $8, T3
+ psrldq $8, T2
+ pxor T3, DATA
+ pxor T2, T1 # <T1:DATA> is result of
+ # carry-less multiplication
+
+ # first phase of the reduction
+ movaps DATA, T3
+ psllq $1, T3
+ pxor DATA, T3
+ psllq $5, T3
+ pxor DATA, T3
+ psllq $57, T3
+ movaps T3, T2
+ pslldq $8, T2
+ psrldq $8, T3
+ pxor T2, DATA
+ pxor T3, T1
+
+ # second phase of the reduction
+ movaps DATA, T2
+ psrlq $5, T2
+ pxor DATA, T2
+ psrlq $1, T2
+ pxor DATA, T2
+ psrlq $1, T2
+ pxor T2, T1
+ pxor T1, DATA
+ ret
+
+/* void clmul_ghash_mul(char *dst, const be128 *shash) */
+ENTRY(clmul_ghash_mul)
+ movups (%rdi), DATA
+ movups (%rsi), SHASH
+ movaps .Lbswap_mask, BSWAP
+ PSHUFB_XMM BSWAP DATA
+ call __clmul_gf128mul_ble
+ PSHUFB_XMM BSWAP DATA
+ movups DATA, (%rdi)
+ ret
+
+/*
+ * void clmul_ghash_update(char *dst, const char *src, unsigned int srclen,
+ * const be128 *shash);
+ */
+ENTRY(clmul_ghash_update)
+ cmp $16, %rdx
+ jb .Lupdate_just_ret # check length
+ movaps .Lbswap_mask, BSWAP
+ movups (%rdi), DATA
+ movups (%rcx), SHASH
+ PSHUFB_XMM BSWAP DATA
+.align 4
+.Lupdate_loop:
+ movups (%rsi), IN1
+ PSHUFB_XMM BSWAP IN1
+ pxor IN1, DATA
+ call __clmul_gf128mul_ble
+ sub $16, %rdx
+ add $16, %rsi
+ cmp $16, %rdx
+ jge .Lupdate_loop
+ PSHUFB_XMM BSWAP DATA
+ movups DATA, (%rdi)
+.Lupdate_just_ret:
+ ret
+
+/*
+ * void clmul_ghash_setkey(be128 *shash, const u8 *key);
+ *
+ * Calculate hash_key << 1 mod poly
+ */
+ENTRY(clmul_ghash_setkey)
+ movaps .Lbswap_mask, BSWAP
+ movups (%rsi), %xmm0
+ PSHUFB_XMM BSWAP %xmm0
+ movaps %xmm0, %xmm1
+ psllq $1, %xmm0
+ psrlq $63, %xmm1
+ movaps %xmm1, %xmm2
+ pslldq $8, %xmm1
+ psrldq $8, %xmm2
+ por %xmm1, %xmm0
+ # reduction
+ pshufd $0b00100100, %xmm2, %xmm1
+ pcmpeqd .Ltwo_one, %xmm1
+ pand .Lpoly, %xmm1
+ pxor %xmm1, %xmm0
+ movups %xmm0, (%rdi)
+ ret
diff --git a/arch/x86/crypto/ghash-clmulni-intel_glue.c b/arch/x86/crypto/ghash-clmulni-intel_glue.c
new file mode 100644
index 00000000000..cbcc8d8ea93
--- /dev/null
+++ b/arch/x86/crypto/ghash-clmulni-intel_glue.c
@@ -0,0 +1,333 @@
+/*
+ * Accelerated GHASH implementation with Intel PCLMULQDQ-NI
+ * instructions. This file contains glue code.
+ *
+ * Copyright (c) 2009 Intel Corp.
+ * Author: Huang Ying <ying.huang@intel.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/crypto.h>
+#include <crypto/algapi.h>
+#include <crypto/cryptd.h>
+#include <crypto/gf128mul.h>
+#include <crypto/internal/hash.h>
+#include <asm/i387.h>
+
+#define GHASH_BLOCK_SIZE 16
+#define GHASH_DIGEST_SIZE 16
+
+void clmul_ghash_mul(char *dst, const be128 *shash);
+
+void clmul_ghash_update(char *dst, const char *src, unsigned int srclen,
+ const be128 *shash);
+
+void clmul_ghash_setkey(be128 *shash, const u8 *key);
+
+struct ghash_async_ctx {
+ struct cryptd_ahash *cryptd_tfm;
+};
+
+struct ghash_ctx {
+ be128 shash;
+};
+
+struct ghash_desc_ctx {
+ u8 buffer[GHASH_BLOCK_SIZE];
+ u32 bytes;
+};
+
+static int ghash_init(struct shash_desc *desc)
+{
+ struct ghash_desc_ctx *dctx = shash_desc_ctx(desc);
+
+ memset(dctx, 0, sizeof(*dctx));
+
+ return 0;
+}
+
+static int ghash_setkey(struct crypto_shash *tfm,
+ const u8 *key, unsigned int keylen)
+{
+ struct ghash_ctx *ctx = crypto_shash_ctx(tfm);
+
+ if (keylen != GHASH_BLOCK_SIZE) {
+ crypto_shash_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
+ return -EINVAL;
+ }
+
+ clmul_ghash_setkey(&ctx->shash, key);
+
+ return 0;
+}
+
+static int ghash_update(struct shash_desc *desc,
+ const u8 *src, unsigned int srclen)
+{
+ struct ghash_desc_ctx *dctx = shash_desc_ctx(desc);
+ struct ghash_ctx *ctx = crypto_shash_ctx(desc->tfm);
+ u8 *dst = dctx->buffer;
+
+ kernel_fpu_begin();
+ if (dctx->bytes) {
+ int n = min(srclen, dctx->bytes);
+ u8 *pos = dst + (GHASH_BLOCK_SIZE - dctx->bytes);
+
+ dctx->bytes -= n;
+ srclen -= n;
+
+ while (n--)
+ *pos++ ^= *src++;
+
+ if (!dctx->bytes)
+ clmul_ghash_mul(dst, &ctx->shash);
+ }
+
+ clmul_ghash_update(dst, src, srclen, &ctx->shash);
+ kernel_fpu_end();
+
+ if (srclen & 0xf) {
+ src += srclen - (srclen & 0xf);
+ srclen &= 0xf;
+ dctx->bytes = GHASH_BLOCK_SIZE - srclen;
+ while (srclen--)
+ *dst++ ^= *src++;
+ }
+
+ return 0;
+}
+
+static void ghash_flush(struct ghash_ctx *ctx, struct ghash_desc_ctx *dctx)
+{
+ u8 *dst = dctx->buffer;
+
+ if (dctx->bytes) {
+ u8 *tmp = dst + (GHASH_BLOCK_SIZE - dctx->bytes);
+
+ while (dctx->bytes--)
+ *tmp++ ^= 0;
+
+ kernel_fpu_begin();
+ clmul_ghash_mul(dst, &ctx->shash);
+ kernel_fpu_end();
+ }
+
+ dctx->bytes = 0;
+}
+
+static int ghash_final(struct shash_desc *desc, u8 *dst)
+{
+ struct ghash_desc_ctx *dctx = shash_desc_ctx(desc);
+ struct ghash_ctx *ctx = crypto_shash_ctx(desc->tfm);
+ u8 *buf = dctx->buffer;
+
+ ghash_flush(ctx, dctx);
+ memcpy(dst, buf, GHASH_BLOCK_SIZE);
+
+ return 0;
+}
+
+static struct shash_alg ghash_alg = {
+ .digestsize = GHASH_DIGEST_SIZE,
+ .init = ghash_init,
+ .update = ghash_update,
+ .final = ghash_final,
+ .setkey = ghash_setkey,
+ .descsize = sizeof(struct ghash_desc_ctx),
+ .base = {
+ .cra_name = "__ghash",
+ .cra_driver_name = "__ghash-pclmulqdqni",
+ .cra_priority = 0,
+ .cra_flags = CRYPTO_ALG_TYPE_SHASH,
+ .cra_blocksize = GHASH_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct ghash_ctx),
+ .cra_module = THIS_MODULE,
+ .cra_list = LIST_HEAD_INIT(ghash_alg.base.cra_list),
+ },
+};
+
+static int ghash_async_init(struct ahash_request *req)
+{
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct ghash_async_ctx *ctx = crypto_ahash_ctx(tfm);
+ struct ahash_request *cryptd_req = ahash_request_ctx(req);
+ struct cryptd_ahash *cryptd_tfm = ctx->cryptd_tfm;
+
+ if (!irq_fpu_usable()) {
+ memcpy(cryptd_req, req, sizeof(*req));
+ ahash_request_set_tfm(cryptd_req, &cryptd_tfm->base);
+ return crypto_ahash_init(cryptd_req);
+ } else {
+ struct shash_desc *desc = cryptd_shash_desc(cryptd_req);
+ struct crypto_shash *child = cryptd_ahash_child(cryptd_tfm);
+
+ desc->tfm = child;
+ desc->flags = req->base.flags;
+ return crypto_shash_init(desc);
+ }
+}
+
+static int ghash_async_update(struct ahash_request *req)
+{
+ struct ahash_request *cryptd_req = ahash_request_ctx(req);
+
+ if (!irq_fpu_usable()) {
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct ghash_async_ctx *ctx = crypto_ahash_ctx(tfm);
+ struct cryptd_ahash *cryptd_tfm = ctx->cryptd_tfm;
+
+ memcpy(cryptd_req, req, sizeof(*req));
+ ahash_request_set_tfm(cryptd_req, &cryptd_tfm->base);
+ return crypto_ahash_update(cryptd_req);
+ } else {
+ struct shash_desc *desc = cryptd_shash_desc(cryptd_req);
+ return shash_ahash_update(req, desc);
+ }
+}
+
+static int ghash_async_final(struct ahash_request *req)
+{
+ struct ahash_request *cryptd_req = ahash_request_ctx(req);
+
+ if (!irq_fpu_usable()) {
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct ghash_async_ctx *ctx = crypto_ahash_ctx(tfm);
+ struct cryptd_ahash *cryptd_tfm = ctx->cryptd_tfm;
+
+ memcpy(cryptd_req, req, sizeof(*req));
+ ahash_request_set_tfm(cryptd_req, &cryptd_tfm->base);
+ return crypto_ahash_final(cryptd_req);
+ } else {
+ struct shash_desc *desc = cryptd_shash_desc(cryptd_req);
+ return crypto_shash_final(desc, req->result);
+ }
+}
+
+static int ghash_async_digest(struct ahash_request *req)
+{
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct ghash_async_ctx *ctx = crypto_ahash_ctx(tfm);
+ struct ahash_request *cryptd_req = ahash_request_ctx(req);
+ struct cryptd_ahash *cryptd_tfm = ctx->cryptd_tfm;
+
+ if (!irq_fpu_usable()) {
+ memcpy(cryptd_req, req, sizeof(*req));
+ ahash_request_set_tfm(cryptd_req, &cryptd_tfm->base);
+ return crypto_ahash_digest(cryptd_req);
+ } else {
+ struct shash_desc *desc = cryptd_shash_desc(cryptd_req);
+ struct crypto_shash *child = cryptd_ahash_child(cryptd_tfm);
+
+ desc->tfm = child;
+ desc->flags = req->base.flags;
+ return shash_ahash_digest(req, desc);
+ }
+}
+
+static int ghash_async_setkey(struct crypto_ahash *tfm, const u8 *key,
+ unsigned int keylen)
+{
+ struct ghash_async_ctx *ctx = crypto_ahash_ctx(tfm);
+ struct crypto_ahash *child = &ctx->cryptd_tfm->base;
+ int err;
+
+ crypto_ahash_clear_flags(child, CRYPTO_TFM_REQ_MASK);
+ crypto_ahash_set_flags(child, crypto_ahash_get_flags(tfm)
+ & CRYPTO_TFM_REQ_MASK);
+ err = crypto_ahash_setkey(child, key, keylen);
+ crypto_ahash_set_flags(tfm, crypto_ahash_get_flags(child)
+ & CRYPTO_TFM_RES_MASK);
+
+ return 0;
+}
+
+static int ghash_async_init_tfm(struct crypto_tfm *tfm)
+{
+ struct cryptd_ahash *cryptd_tfm;
+ struct ghash_async_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ cryptd_tfm = cryptd_alloc_ahash("__ghash-pclmulqdqni", 0, 0);
+ if (IS_ERR(cryptd_tfm))
+ return PTR_ERR(cryptd_tfm);
+ ctx->cryptd_tfm = cryptd_tfm;
+ crypto_ahash_set_reqsize(__crypto_ahash_cast(tfm),
+ sizeof(struct ahash_request) +
+ crypto_ahash_reqsize(&cryptd_tfm->base));
+
+ return 0;
+}
+
+static void ghash_async_exit_tfm(struct crypto_tfm *tfm)
+{
+ struct ghash_async_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ cryptd_free_ahash(ctx->cryptd_tfm);
+}
+
+static struct ahash_alg ghash_async_alg = {
+ .init = ghash_async_init,
+ .update = ghash_async_update,
+ .final = ghash_async_final,
+ .setkey = ghash_async_setkey,
+ .digest = ghash_async_digest,
+ .halg = {
+ .digestsize = GHASH_DIGEST_SIZE,
+ .base = {
+ .cra_name = "ghash",
+ .cra_driver_name = "ghash-clmulni",
+ .cra_priority = 400,
+ .cra_flags = CRYPTO_ALG_TYPE_AHASH | CRYPTO_ALG_ASYNC,
+ .cra_blocksize = GHASH_BLOCK_SIZE,
+ .cra_type = &crypto_ahash_type,
+ .cra_module = THIS_MODULE,
+ .cra_list = LIST_HEAD_INIT(ghash_async_alg.halg.base.cra_list),
+ .cra_init = ghash_async_init_tfm,
+ .cra_exit = ghash_async_exit_tfm,
+ },
+ },
+};
+
+static int __init ghash_pclmulqdqni_mod_init(void)
+{
+ int err;
+
+ if (!cpu_has_pclmulqdq) {
+ printk(KERN_INFO "Intel PCLMULQDQ-NI instructions are not"
+ " detected.\n");
+ return -ENODEV;
+ }
+
+ err = crypto_register_shash(&ghash_alg);
+ if (err)
+ goto err_out;
+ err = crypto_register_ahash(&ghash_async_alg);
+ if (err)
+ goto err_shash;
+
+ return 0;
+
+err_shash:
+ crypto_unregister_shash(&ghash_alg);
+err_out:
+ return err;
+}
+
+static void __exit ghash_pclmulqdqni_mod_exit(void)
+{
+ crypto_unregister_ahash(&ghash_async_alg);
+ crypto_unregister_shash(&ghash_alg);
+}
+
+module_init(ghash_pclmulqdqni_mod_init);
+module_exit(ghash_pclmulqdqni_mod_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("GHASH Message Digest Algorithm, "
+ "acclerated by PCLMULQDQ-NI");
+MODULE_ALIAS("ghash");
diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h
index 9cfc88b9774..613700f27a4 100644
--- a/arch/x86/include/asm/cpufeature.h
+++ b/arch/x86/include/asm/cpufeature.h
@@ -248,6 +248,7 @@ extern const char * const x86_power_flags[32];
#define cpu_has_x2apic boot_cpu_has(X86_FEATURE_X2APIC)
#define cpu_has_xsave boot_cpu_has(X86_FEATURE_XSAVE)
#define cpu_has_hypervisor boot_cpu_has(X86_FEATURE_HYPERVISOR)
+#define cpu_has_pclmulqdq boot_cpu_has(X86_FEATURE_PCLMULQDQ)
#if defined(CONFIG_X86_INVLPG) || defined(CONFIG_X86_64)
# define cpu_has_invlpg 1
diff --git a/arch/x86/include/asm/i387.h b/arch/x86/include/asm/i387.h
index 0b20bbb758f..ebfb8a9e11f 100644
--- a/arch/x86/include/asm/i387.h
+++ b/arch/x86/include/asm/i387.h
@@ -10,6 +10,8 @@
#ifndef _ASM_X86_I387_H
#define _ASM_X86_I387_H
+#ifndef __ASSEMBLY__
+
#include <linux/sched.h>
#include <linux/kernel_stat.h>
#include <linux/regset.h>
@@ -411,4 +413,9 @@ static inline unsigned short get_fpu_mxcsr(struct task_struct *tsk)
}
}
+#endif /* __ASSEMBLY__ */
+
+#define PSHUFB_XMM5_XMM0 .byte 0x66, 0x0f, 0x38, 0x00, 0xc5
+#define PSHUFB_XMM5_XMM6 .byte 0x66, 0x0f, 0x38, 0x00, 0xf5
+
#endif /* _ASM_X86_I387_H */
diff --git a/arch/x86/include/asm/inst.h b/arch/x86/include/asm/inst.h
new file mode 100644
index 00000000000..14cf526091f
--- /dev/null
+++ b/arch/x86/include/asm/inst.h
@@ -0,0 +1,150 @@
+/*
+ * Generate .byte code for some instructions not supported by old
+ * binutils.
+ */
+#ifndef X86_ASM_INST_H
+#define X86_ASM_INST_H
+
+#ifdef __ASSEMBLY__
+
+ .macro XMM_NUM opd xmm
+ .ifc \xmm,%xmm0
+ \opd = 0
+ .endif
+ .ifc \xmm,%xmm1
+ \opd = 1
+ .endif
+ .ifc \xmm,%xmm2
+ \opd = 2
+ .endif
+ .ifc \xmm,%xmm3
+ \opd = 3
+ .endif
+ .ifc \xmm,%xmm4
+ \opd = 4
+ .endif
+ .ifc \xmm,%xmm5
+ \opd = 5
+ .endif
+ .ifc \xmm,%xmm6
+ \opd = 6
+ .endif
+ .ifc \xmm,%xmm7
+ \opd = 7
+ .endif
+ .ifc \xmm,%xmm8
+ \opd = 8
+ .endif
+ .ifc \xmm,%xmm9
+ \opd = 9
+ .endif
+ .ifc \xmm,%xmm10
+ \opd = 10
+ .endif
+ .ifc \xmm,%xmm11
+ \opd = 11
+ .endif
+ .ifc \xmm,%xmm12
+ \opd = 12
+ .endif
+ .ifc \xmm,%xmm13
+ \opd = 13
+ .endif
+ .ifc \xmm,%xmm14
+ \opd = 14
+ .endif
+ .ifc \xmm,%xmm15
+ \opd = 15
+ .endif
+ .endm
+
+ .macro PFX_OPD_SIZE
+ .byte 0x66
+ .endm
+
+ .macro PFX_REX opd1 opd2
+ .if (\opd1 | \opd2) & 8
+ .byte 0x40 | ((\opd1 & 8) >> 3) | ((\opd2 & 8) >> 1)
+ .endif
+ .endm
+
+ .macro MODRM mod opd1 opd2
+ .byte \mod | (\opd1 & 7) | ((\opd2 & 7) << 3)
+ .endm
+
+ .macro PSHUFB_XMM xmm1 xmm2
+ XMM_NUM pshufb_opd1 \xmm1
+ XMM_NUM pshufb_opd2 \xmm2
+ PFX_OPD_SIZE
+ PFX_REX pshufb_opd1 pshufb_opd2
+ .byte 0x0f, 0x38, 0x00
+ MODRM 0xc0 pshufb_opd1 pshufb_opd2
+ .endm
+
+ .macro PCLMULQDQ imm8 xmm1 xmm2
+ XMM_NUM clmul_opd1 \xmm1
+ XMM_NUM clmul_opd2 \xmm2
+ PFX_OPD_SIZE
+ PFX_REX clmul_opd1 clmul_opd2
+ .byte 0x0f, 0x3a, 0x44
+ MODRM 0xc0 clmul_opd1 clmul_opd2
+ .byte \imm8
+ .endm
+
+ .macro AESKEYGENASSIST rcon xmm1 xmm2
+ XMM_NUM aeskeygen_opd1 \xmm1
+ XMM_NUM aeskeygen_opd2 \xmm2
+ PFX_OPD_SIZE
+ PFX_REX aeskeygen_opd1 aeskeygen_opd2
+ .byte 0x0f, 0x3a, 0xdf
+ MODRM 0xc0 aeskeygen_opd1 aeskeygen_opd2
+ .byte \rcon
+ .endm
+
+ .macro AESIMC xmm1 xmm2
+ XMM_NUM aesimc_opd1 \xmm1
+ XMM_NUM aesimc_opd2 \xmm2
+ PFX_OPD_SIZE
+ PFX_REX aesimc_opd1 aesimc_opd2
+ .byte 0x0f, 0x38, 0xdb
+ MODRM 0xc0 aesimc_opd1 aesimc_opd2
+ .endm
+
+ .macro AESENC xmm1 xmm2
+ XMM_NUM aesenc_opd1 \xmm1
+ XMM_NUM aesenc_opd2 \xmm2
+ PFX_OPD_SIZE
+ PFX_REX aesenc_opd1 aesenc_opd2
+ .byte 0x0f, 0x38, 0xdc
+ MODRM 0xc0 aesenc_opd1 aesenc_opd2
+ .endm
+
+ .macro AESENCLAST xmm1 xmm2
+ XMM_NUM aesenclast_opd1 \xmm1
+ XMM_NUM aesenclast_opd2 \xmm2
+ PFX_OPD_SIZE
+ PFX_REX aesenclast_opd1 aesenclast_opd2
+ .byte 0x0f, 0x38, 0xdd
+ MODRM 0xc0 aesenclast_opd1 aesenclast_opd2
+ .endm
+
+ .macro AESDEC xmm1 xmm2
+ XMM_NUM aesdec_opd1 \xmm1
+ XMM_NUM aesdec_opd2 \xmm2
+ PFX_OPD_SIZE
+ PFX_REX aesdec_opd1 aesdec_opd2
+ .byte 0x0f, 0x38, 0xde
+ MODRM 0xc0 aesdec_opd1 aesdec_opd2
+ .endm
+
+ .macro AESDECLAST xmm1 xmm2
+ XMM_NUM aesdeclast_opd1 \xmm1
+ XMM_NUM aesdeclast_opd2 \xmm2
+ PFX_OPD_SIZE
+ PFX_REX aesdeclast_opd1 aesdeclast_opd2
+ .byte 0x0f, 0x38, 0xdf
+ MODRM 0xc0 aesdeclast_opd1 aesdeclast_opd2
+ .endm
+#endif
+
+#endif
diff --git a/crypto/Kconfig b/crypto/Kconfig
index 26b5dd0cb56..81c185a6971 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -440,6 +440,15 @@ config CRYPTO_WP512
See also:
<http://planeta.terra.com.br/informatica/paulobarreto/WhirlpoolPage.html>
+config CRYPTO_GHASH_CLMUL_NI_INTEL
+ tristate "GHASH digest algorithm (CLMUL-NI accelerated)"
+ depends on (X86 || UML_X86) && 64BIT
+ select CRYPTO_SHASH
+ select CRYPTO_CRYPTD
+ help
+ GHASH is message digest algorithm for GCM (Galois/Counter Mode).
+ The implementation is accelerated by CLMUL-NI of Intel.
+
comment "Ciphers"
config CRYPTO_AES
diff --git a/crypto/ansi_cprng.c b/crypto/ansi_cprng.c
index 3aa6e3834bf..2bc33214284 100644
--- a/crypto/ansi_cprng.c
+++ b/crypto/ansi_cprng.c
@@ -85,7 +85,7 @@ static void xor_vectors(unsigned char *in1, unsigned char *in2,
* Returns DEFAULT_BLK_SZ bytes of random data per call
* returns 0 if generation succeded, <0 if something went wrong
*/
-static int _get_more_prng_bytes(struct prng_context *ctx)
+static int _get_more_prng_bytes(struct prng_context *ctx, int cont_test)
{
int i;
unsigned char tmp[DEFAULT_BLK_SZ];
@@ -132,7 +132,7 @@ static int _get_more_prng_bytes(struct prng_context *ctx)
*/
if (!memcmp(ctx->rand_data, ctx->last_rand_data,
DEFAULT_BLK_SZ)) {
- if (fips_enabled) {
+ if (cont_test) {
panic("cprng %p Failed repetition check!\n",
ctx);
}
@@ -185,16 +185,14 @@ static int _get_more_prng_bytes(struct prng_context *ctx)
}
/* Our exported functions */
-static int get_prng_bytes(char *buf, size_t nbytes, struct prng_context *ctx)
+static int get_prng_bytes(char *buf, size_t nbytes, struct prng_context *ctx,
+ int do_cont_test)
{
unsigned char *ptr = buf;
unsigned int byte_count = (unsigned int)nbytes;
int err;
- if (nbytes < 0)
- return -EINVAL;
-
spin_lock_bh(&ctx->prng_lock);
err = -EINVAL;
@@ -220,7 +218,7 @@ static int get_prng_bytes(char *buf, size_t nbytes, struct prng_context *ctx)
remainder:
if (ctx->rand_data_valid == DEFAULT_BLK_SZ) {
- if (_get_more_prng_bytes(ctx) < 0) {
+ if (_get_more_prng_bytes(ctx, do_cont_test) < 0) {
memset(buf, 0, nbytes);
err = -EINVAL;
goto done;
@@ -247,7 +245,7 @@ empty_rbuf:
*/
for (; byte_count >= DEFAULT_BLK_SZ; byte_count -= DEFAULT_BLK_SZ) {
if (ctx->rand_data_valid == DEFAULT_BLK_SZ) {
- if (_get_more_prng_bytes(ctx) < 0) {
+ if (_get_more_prng_bytes(ctx, do_cont_test) < 0) {
memset(buf, 0, nbytes);
err = -EINVAL;
goto done;
@@ -356,7 +354,7 @@ static int cprng_get_random(struct crypto_rng *tfm, u8 *rdata,
{
struct prng_context *prng = crypto_rng_ctx(tfm);
- return get_prng_bytes(rdata, dlen, prng);
+ return get_prng_bytes(rdata, dlen, prng, 0);
}
/*
@@ -404,19 +402,79 @@ static struct crypto_alg rng_alg = {
}
};
+#ifdef CONFIG_CRYPTO_FIPS
+static int fips_cprng_get_random(struct crypto_rng *tfm, u8 *rdata,
+ unsigned int dlen)
+{
+ struct prng_context *prng = crypto_rng_ctx(tfm);
+
+ return get_prng_bytes(rdata, dlen, prng, 1);
+}
+
+static int fips_cprng_reset(struct crypto_rng *tfm, u8 *seed, unsigned int slen)
+{
+ u8 rdata[DEFAULT_BLK_SZ];
+ int rc;
+
+ struct prng_context *prng = crypto_rng_ctx(tfm);
+
+ rc = cprng_reset(tfm, seed, slen);
+
+ if (!rc)
+ goto out;
+
+ /* this primes our continuity test */
+ rc = get_prng_bytes(rdata, DEFAULT_BLK_SZ, prng, 0);
+ prng->rand_data_valid = DEFAULT_BLK_SZ;
+
+out:
+ return rc;
+}
+
+static struct crypto_alg fips_rng_alg = {
+ .cra_name = "fips(ansi_cprng)",
+ .cra_driver_name = "fips_ansi_cprng",
+ .cra_priority = 300,
+ .cra_flags = CRYPTO_ALG_TYPE_RNG,
+ .cra_ctxsize = sizeof(struct prng_context),
+ .cra_type = &crypto_rng_type,
+ .cra_module = THIS_MODULE,
+ .cra_list = LIST_HEAD_INIT(rng_alg.cra_list),
+ .cra_init = cprng_init,
+ .cra_exit = cprng_exit,
+ .cra_u = {
+ .rng = {
+ .rng_make_random = fips_cprng_get_random,
+ .rng_reset = fips_cprng_reset,
+ .seedsize = DEFAULT_PRNG_KSZ + 2*DEFAULT_BLK_SZ,
+ }
+ }
+};
+#endif
/* Module initalization */
static int __init prng_mod_init(void)
{
- if (fips_enabled)
- rng_alg.cra_priority += 200;
+ int rc = 0;
- return crypto_register_alg(&rng_alg);
+ rc = crypto_register_alg(&rng_alg);
+#ifdef CONFIG_CRYPTO_FIPS
+ if (rc)
+ goto out;
+
+ rc = crypto_register_alg(&fips_rng_alg);
+
+out:
+#endif
+ return rc;
}
static void __exit prng_mod_fini(void)
{
crypto_unregister_alg(&rng_alg);
+#ifdef CONFIG_CRYPTO_FIPS
+ crypto_unregister_alg(&fips_rng_alg);
+#endif
return;
}
diff --git a/crypto/cryptd.c b/crypto/cryptd.c
index 35335825a4e..f8ae0d94a64 100644
--- a/crypto/cryptd.c
+++ b/crypto/cryptd.c
@@ -711,6 +711,13 @@ struct crypto_shash *cryptd_ahash_child(struct cryptd_ahash *tfm)
}
EXPORT_SYMBOL_GPL(cryptd_ahash_child);
+struct shash_desc *cryptd_shash_desc(struct ahash_request *req)
+{
+ struct cryptd_hash_request_ctx *rctx = ahash_request_ctx(req);
+ return &rctx->desc;
+}
+EXPORT_SYMBOL_GPL(cryptd_shash_desc);
+
void cryptd_free_ahash(struct cryptd_ahash *tfm)
{
crypto_free_ahash(&tfm->base);
diff --git a/crypto/digest.c b/crypto/digest.c
deleted file mode 100644
index 5d3f1303da9..00000000000
--- a/crypto/digest.c
+++ /dev/null
@@ -1,240 +0,0 @@
-/*
- * Cryptographic API.
- *
- * Digest operations.
- *
- * Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the Free
- * Software Foundation; either version 2 of the License, or (at your option)
- * any later version.
- *
- */
-
-#include <crypto/internal/hash.h>
-#include <crypto/scatterwalk.h>
-#include <linux/mm.h>
-#include <linux/errno.h>
-#include <linux/hardirq.h>
-#include <linux/highmem.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/scatterlist.h>
-
-#include "internal.h"
-
-static int init(struct hash_desc *desc)
-{
- struct crypto_tfm *tfm = crypto_hash_tfm(desc->tfm);
-
- tfm->__crt_alg->cra_digest.dia_init(tfm);
- return 0;
-}
-
-static int update2(struct hash_desc *desc,
- struct scatterlist *sg, unsigned int nbytes)
-{
- struct crypto_tfm *tfm = crypto_hash_tfm(desc->tfm);
- unsigned int alignmask = crypto_tfm_alg_alignmask(tfm);
-
- if (!nbytes)
- return 0;
-
- for (;;) {
- struct page *pg = sg_page(sg);
- unsigned int offset = sg->offset;
- unsigned int l = sg->length;
-
- if (unlikely(l > nbytes))
- l = nbytes;
- nbytes -= l;
-
- do {
- unsigned int bytes_from_page = min(l, ((unsigned int)
- (PAGE_SIZE)) -
- offset);
- char *src = crypto_kmap(pg, 0);
- char *p = src + offset;
-
- if (unlikely(offset & alignmask)) {
- unsigned int bytes =
- alignmask + 1 - (offset & alignmask);
- bytes = min(bytes, bytes_from_page);
- tfm->__crt_alg->cra_digest.dia_update(tfm, p,
- bytes);
- p += bytes;
- bytes_from_page -= bytes;
- l -= bytes;
- }
- tfm->__crt_alg->cra_digest.dia_update(tfm, p,
- bytes_from_page);
- crypto_kunmap(src, 0);
- crypto_yield(desc->flags);
- offset = 0;
- pg++;
- l -= bytes_from_page;
- } while (l > 0);
-
- if (!nbytes)
- break;
- sg = scatterwalk_sg_next(sg);
- }
-
- return 0;
-}
-
-static int update(struct hash_desc *desc,
- struct scatterlist *sg, unsigned int nbytes)
-{
- if (WARN_ON_ONCE(in_irq()))
- return -EDEADLK;
- return update2(desc, sg, nbytes);
-}
-
-static int final(struct hash_desc *desc, u8 *out)
-{
- struct crypto_tfm *tfm = crypto_hash_tfm(desc->tfm);
- unsigned long alignmask = crypto_tfm_alg_alignmask(tfm);
- struct digest_alg *digest = &tfm->__crt_alg->cra_digest;
-
- if (unlikely((unsigned long)out & alignmask)) {
- unsigned long align = alignmask + 1;
- unsigned long addr = (unsigned long)crypto_tfm_ctx(tfm);
- u8 *dst = (u8 *)ALIGN(addr, align) +
- ALIGN(tfm->__crt_alg->cra_ctxsize, align);
-
- digest->dia_final(tfm, dst);
- memcpy(out, dst, digest->dia_digestsize);
- } else
- digest->dia_final(tfm, out);
-
- return 0;
-}
-
-static int nosetkey(struct crypto_hash *tfm, const u8 *key, unsigned int keylen)
-{
- crypto_hash_clear_flags(tfm, CRYPTO_TFM_RES_MASK);
- return -ENOSYS;
-}
-
-static int setkey(struct crypto_hash *hash, const u8 *key, unsigned int keylen)
-{
- struct crypto_tfm *tfm = crypto_hash_tfm(hash);
-
- crypto_hash_clear_flags(hash, CRYPTO_TFM_RES_MASK);
- return tfm->__crt_alg->cra_digest.dia_setkey(tfm, key, keylen);
-}
-
-static int digest(struct hash_desc *desc,
- struct scatterlist *sg, unsigned int nbytes, u8 *out)
-{
- if (WARN_ON_ONCE(in_irq()))
- return -EDEADLK;
-
- init(desc);
- update2(desc, sg, nbytes);
- return final(desc, out);
-}
-
-int crypto_init_digest_ops(struct crypto_tfm *tfm)
-{
- struct hash_tfm *ops = &tfm->crt_hash;
- struct digest_alg *dalg = &tfm->__crt_alg->cra_digest;
-
- if (dalg->dia_digestsize > PAGE_SIZE / 8)
- return -EINVAL;
-
- ops->init = init;
- ops->update = update;
- ops->final = final;
- ops->digest = digest;
- ops->setkey = dalg->dia_setkey ? setkey : nosetkey;
- ops->digestsize = dalg->dia_digestsize;
-
- return 0;
-}
-
-void crypto_exit_digest_ops(struct crypto_tfm *tfm)
-{
-}
-
-static int digest_async_nosetkey(struct crypto_ahash *tfm_async, const u8 *key,
- unsigned int keylen)
-{
- crypto_ahash_clear_flags(tfm_async, CRYPTO_TFM_RES_MASK);
- return -ENOSYS;
-}
-
-static int digest_async_setkey(struct crypto_ahash *tfm_async, const u8 *key,
- unsigned int keylen)
-{
- struct crypto_tfm *tfm = crypto_ahash_tfm(tfm_async);
- struct digest_alg *dalg = &tfm->__crt_alg->cra_digest;
-
- crypto_ahash_clear_flags(tfm_async, CRYPTO_TFM_RES_MASK);
- return dalg->dia_setkey(tfm, key, keylen);
-}
-
-static int digest_async_init(struct ahash_request *req)
-{
- struct crypto_tfm *tfm = req->base.tfm;
- struct digest_alg *dalg = &tfm->__crt_alg->cra_digest;
-
- dalg->dia_init(tfm);
- return 0;
-}
-
-static int digest_async_update(struct ahash_request *req)
-{
- struct crypto_tfm *tfm = req->base.tfm;
- struct hash_desc desc = {
- .tfm = __crypto_hash_cast(tfm),
- .flags = req->base.flags,
- };
-
- update(&desc, req->src, req->nbytes);
- return 0;
-}
-
-static int digest_async_final(struct ahash_request *req)
-{
- struct crypto_tfm *tfm = req->base.tfm;
- struct hash_desc desc = {
- .tfm = __crypto_hash_cast(tfm),
- .flags = req->base.flags,
- };
-
- final(&desc, req->result);
- return 0;
-}
-
-static int digest_async_digest(struct ahash_request *req)
-{
- struct crypto_tfm *tfm = req->base.tfm;
- struct hash_desc desc = {
- .tfm = __crypto_hash_cast(tfm),
- .flags = req->base.flags,
- };
-
- return digest(&desc, req->src, req->nbytes, req->result);
-}
-
-int crypto_init_digest_ops_async(struct crypto_tfm *tfm)
-{
- struct ahash_tfm *crt = &tfm->crt_ahash;
- struct digest_alg *dalg = &tfm->__crt_alg->cra_digest;
-
- if (dalg->dia_digestsize > PAGE_SIZE / 8)
- return -EINVAL;
-
- crt->init = digest_async_init;
- crt->update = digest_async_update;
- crt->final = digest_async_final;
- crt->digest = digest_async_digest;
- crt->setkey = dalg->dia_setkey ? digest_async_setkey :
- digest_async_nosetkey;
- crt->digestsize = dalg->dia_digestsize;
-
- return 0;
-}
diff --git a/crypto/hash.c b/crypto/hash.c
deleted file mode 100644
index cb86b19fd10..00000000000
--- a/crypto/hash.c
+++ /dev/null
@@ -1,183 +0,0 @@
-/*
- * Cryptographic Hash operations.
- *
- * Copyright (c) 2006 Herbert Xu <herbert@gondor.apana.org.au>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the Free
- * Software Foundation; either version 2 of the License, or (at your option)
- * any later version.
- */
-
-#include <crypto/internal/hash.h>
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/seq_file.h>
-
-#include "internal.h"
-
-static unsigned int crypto_hash_ctxsize(struct crypto_alg *alg, u32 type,
- u32 mask)
-{
- return alg->cra_ctxsize;
-}
-
-static int hash_setkey_unaligned(struct crypto_hash *crt, const u8 *key,
- unsigned int keylen)
-{
- struct crypto_tfm *tfm = crypto_hash_tfm(crt);
- struct hash_alg *alg = &tfm->__crt_alg->cra_hash;
- unsigned long alignmask = crypto_hash_alignmask(crt);
- int ret;
- u8 *buffer, *alignbuffer;
- unsigned long absize;
-
- absize = keylen + alignmask;
- buffer = kmalloc(absize, GFP_ATOMIC);
- if (!buffer)
- return -ENOMEM;
-
- alignbuffer = (u8 *)ALIGN((unsigned long)buffer, alignmask + 1);
- memcpy(alignbuffer, key, keylen);
- ret = alg->setkey(crt, alignbuffer, keylen);
- memset(alignbuffer, 0, keylen);
- kfree(buffer);
- return ret;
-}
-
-static int hash_setkey(struct crypto_hash *crt, const u8 *key,
- unsigned int keylen)
-{
- struct crypto_tfm *tfm = crypto_hash_tfm(crt);
- struct hash_alg *alg = &tfm->__crt_alg->cra_hash;
- unsigned long alignmask = crypto_hash_alignmask(crt);
-
- if ((unsigned long)key & alignmask)
- return hash_setkey_unaligned(crt, key, keylen);
-
- return alg->setkey(crt, key, keylen);
-}
-
-static int hash_async_setkey(struct crypto_ahash *tfm_async, const u8 *key,
- unsigned int keylen)
-{
- struct crypto_tfm *tfm = crypto_ahash_tfm(tfm_async);
- struct crypto_hash *tfm_hash = __crypto_hash_cast(tfm);
- struct hash_alg *alg = &tfm->__crt_alg->cra_hash;
-
- return alg->setkey(tfm_hash, key, keylen);
-}
-
-static int hash_async_init(struct ahash_request *req)
-{
- struct crypto_tfm *tfm = req->base.tfm;
- struct hash_alg *alg = &tfm->__crt_alg->cra_hash;
- struct hash_desc desc = {
- .tfm = __crypto_hash_cast(tfm),
- .flags = req->base.flags,
- };
-
- return alg->init(&desc);
-}
-
-static int hash_async_update(struct ahash_request *req)
-{
- struct crypto_tfm *tfm = req->base.tfm;
- struct hash_alg *alg = &tfm->__crt_alg->cra_hash;
- struct hash_desc desc = {
- .tfm = __crypto_hash_cast(tfm),
- .flags = req->base.flags,
- };
-
- return alg->update(&desc, req->src, req->nbytes);
-}
-
-static int hash_async_final(struct ahash_request *req)
-{
- struct crypto_tfm *tfm = req->base.tfm;
- struct hash_alg *alg = &tfm->__crt_alg->cra_hash;
- struct hash_desc desc = {
- .tfm = __crypto_hash_cast(tfm),
- .flags = req->base.flags,
- };
-
- return alg->final(&desc, req->result);
-}
-
-static int hash_async_digest(struct ahash_request *req)
-{
- struct crypto_tfm *tfm = req->base.tfm;
- struct hash_alg *alg = &tfm->__crt_alg->cra_hash;
- struct hash_desc desc = {
- .tfm = __crypto_hash_cast(tfm),
- .flags = req->base.flags,
- };
-
- return alg->digest(&desc, req->src, req->nbytes, req->result);
-}
-
-static int crypto_init_hash_ops_async(struct crypto_tfm *tfm)
-{
- struct ahash_tfm *crt = &tfm->crt_ahash;
- struct hash_alg *alg = &tfm->__crt_alg->cra_hash;
-
- crt->init = hash_async_init;
- crt->update = hash_async_update;
- crt->final = hash_async_final;
- crt->digest = hash_async_digest;
- crt->setkey = hash_async_setkey;
- crt->digestsize = alg->digestsize;
-
- return 0;
-}
-
-static int crypto_init_hash_ops_sync(struct crypto_tfm *tfm)
-{
- struct hash_tfm *crt = &tfm->crt_hash;
- struct hash_alg *alg = &tfm->__crt_alg->cra_hash;
-
- crt->init = alg->init;
- crt->update = alg->update;
- crt->final = alg->final;
- crt->digest = alg->digest;
- crt->setkey = hash_setkey;
- crt->digestsize = alg->digestsize;
-
- return 0;
-}
-
-static int crypto_init_hash_ops(struct crypto_tfm *tfm, u32 type, u32 mask)
-{
- struct hash_alg *alg = &tfm->__crt_alg->cra_hash;
-
- if (alg->digestsize > PAGE_SIZE / 8)
- return -EINVAL;
-
- if ((mask & CRYPTO_ALG_TYPE_HASH_MASK) != CRYPTO_ALG_TYPE_HASH_MASK)
- return crypto_init_hash_ops_async(tfm);
- else
- return crypto_init_hash_ops_sync(tfm);
-}
-
-static void crypto_hash_show(struct seq_file *m, struct crypto_alg *alg)
- __attribute__ ((unused));
-static void crypto_hash_show(struct seq_file *m, struct crypto_alg *alg)
-{
- seq_printf(m, "type : hash\n");
- seq_printf(m, "blocksize : %u\n", alg->cra_blocksize);
- seq_printf(m, "digestsize : %u\n", alg->cra_hash.digestsize);
-}
-
-const struct crypto_type crypto_hash_type = {
- .ctxsize = crypto_hash_ctxsize,
- .init = crypto_init_hash_ops,
-#ifdef CONFIG_PROC_FS
- .show = crypto_hash_show,
-#endif
-};
-EXPORT_SYMBOL_GPL(crypto_hash_type);
-
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("Generic cryptographic hash type");
diff --git a/crypto/proc.c b/crypto/proc.c
index 1c38733c224..58fef67d4f4 100644
--- a/crypto/proc.c
+++ b/crypto/proc.c
@@ -109,13 +109,6 @@ static int c_show(struct seq_file *m, void *p)
seq_printf(m, "max keysize : %u\n",
alg->cra_cipher.cia_max_keysize);
break;
-
- case CRYPTO_ALG_TYPE_DIGEST:
- seq_printf(m, "type : digest\n");
- seq_printf(m, "blocksize : %u\n", alg->cra_blocksize);
- seq_printf(m, "digestsize : %u\n",
- alg->cra_digest.dia_digestsize);
- break;
case CRYPTO_ALG_TYPE_COMPRESS:
seq_printf(m, "type : compression\n");
break;
diff --git a/crypto/testmgr.c b/crypto/testmgr.c
index 6d5b746637b..7620bfce92f 100644
--- a/crypto/testmgr.c
+++ b/crypto/testmgr.c
@@ -1201,7 +1201,7 @@ static int test_cprng(struct crypto_rng *tfm, struct cprng_testvec *template,
unsigned int tcount)
{
const char *algo = crypto_tfm_alg_driver_name(crypto_rng_tfm(tfm));
- int err, i, j, seedsize;
+ int err = 0, i, j, seedsize;
u8 *seed;
char result[32];
@@ -1943,6 +1943,15 @@ static const struct alg_test_desc alg_test_descs[] = {
}
}
}, {
+ .alg = "ghash",
+ .test = alg_test_hash,
+ .suite = {
+ .hash = {
+ .vecs = ghash_tv_template,
+ .count = GHASH_TEST_VECTORS
+ }
+ }
+ }, {
.alg = "hmac(md5)",
.test = alg_test_hash,
.suite = {
diff --git a/crypto/testmgr.h b/crypto/testmgr.h
index 9963b18983a..fb765173d41 100644
--- a/crypto/testmgr.h
+++ b/crypto/testmgr.h
@@ -1003,6 +1003,21 @@ static struct hash_testvec tgr128_tv_template[] = {
},
};
+#define GHASH_TEST_VECTORS 1
+
+static struct hash_testvec ghash_tv_template[] =
+{
+ {
+
+ .key = "\xdf\xa6\xbf\x4d\xed\x81\xdb\x03\xff\xca\xff\x95\xf8\x30\xf0\x61",
+ .ksize = 16,
+ .plaintext = "\x95\x2b\x2a\x56\xa5\x60\x04a\xc0\xb3\x2b\x66\x56\xa0\x5b\x40\xb6",
+ .psize = 16,
+ .digest = "\xda\x53\xeb\x0a\xd2\xc5\x5b\xb6"
+ "\x4f\xc4\x80\x2c\xc3\xfe\xda\x60",
+ },
+};
+
/*
* HMAC-MD5 test vectors from RFC2202
* (These need to be fixed to not use strlen).
diff --git a/drivers/char/hw_random/core.c b/drivers/char/hw_random/core.c
index 1573aebd54b..8b7d56a0fe3 100644
--- a/drivers/char/hw_random/core.c
+++ b/drivers/char/hw_random/core.c
@@ -52,7 +52,9 @@
static struct hwrng *current_rng;
static LIST_HEAD(rng_list);
static DEFINE_MUTEX(rng_mutex);
-
+static int data_avail;
+static u8 rng_buffer[SMP_CACHE_BYTES < 32 ? 32 : SMP_CACHE_BYTES]
+ __cacheline_aligned;
static inline int hwrng_init(struct hwrng *rng)
{
@@ -67,19 +69,6 @@ static inline void hwrng_cleanup(struct hwrng *rng)
rng->cleanup(rng);
}
-static inline int hwrng_data_present(struct hwrng *rng, int wait)
-{
- if (!rng->data_present)
- return 1;
- return rng->data_present(rng, wait);
-}
-
-static inline int hwrng_data_read(struct hwrng *rng, u32 *data)
-{
- return rng->data_read(rng, data);
-}
-
-
static int rng_dev_open(struct inode *inode, struct file *filp)
{
/* enforce read-only access to this chrdev */
@@ -91,54 +80,87 @@ static int rng_dev_open(struct inode *inode, struct file *filp)
return 0;
}
+static inline int rng_get_data(struct hwrng *rng, u8 *buffer, size_t size,
+ int wait) {
+ int present;
+
+ if (rng->read)
+ return rng->read(rng, (void *)buffer, size, wait);
+
+ if (rng->data_present)
+ present = rng->data_present(rng, wait);
+ else
+ present = 1;
+
+ if (present)
+ return rng->data_read(rng, (u32 *)buffer);
+
+ return 0;
+}
+
static ssize_t rng_dev_read(struct file *filp, char __user *buf,
size_t size, loff_t *offp)
{
- u32 data;
ssize_t ret = 0;
int err = 0;
- int bytes_read;
+ int bytes_read, len;
while (size) {
- err = -ERESTARTSYS;
- if (mutex_lock_interruptible(&rng_mutex))
+ if (mutex_lock_interruptible(&rng_mutex)) {
+ err = -ERESTARTSYS;
goto out;
+ }
+
if (!current_rng) {
- mutex_unlock(&rng_mutex);
err = -ENODEV;
- goto out;
+ goto out_unlock;
}
- bytes_read = 0;
- if (hwrng_data_present(current_rng,
- !(filp->f_flags & O_NONBLOCK)))
- bytes_read = hwrng_data_read(current_rng, &data);
- mutex_unlock(&rng_mutex);
-
- err = -EAGAIN;
- if (!bytes_read && (filp->f_flags & O_NONBLOCK))
- goto out;
- if (bytes_read < 0) {
- err = bytes_read;
- goto out;
+ if (!data_avail) {
+ bytes_read = rng_get_data(current_rng, rng_buffer,
+ sizeof(rng_buffer),
+ !(filp->f_flags & O_NONBLOCK));
+ if (bytes_read < 0) {
+ err = bytes_read;
+ goto out_unlock;
+ }
+ data_avail = bytes_read;
}
- err = -EFAULT;
- while (bytes_read && size) {
- if (put_user((u8)data, buf++))
- goto out;
- size--;
- ret++;
- bytes_read--;
- data >>= 8;
+ if (!data_avail) {
+ if (filp->f_flags & O_NONBLOCK) {
+ err = -EAGAIN;
+ goto out_unlock;
+ }
+ } else {
+ len = data_avail;
+ if (len > size)
+ len = size;
+
+ data_avail -= len;
+
+ if (copy_to_user(buf + ret, rng_buffer + data_avail,
+ len)) {
+ err = -EFAULT;
+ goto out_unlock;
+ }
+
+ size -= len;
+ ret += len;
}
+ mutex_unlock(&rng_mutex);
+
if (need_resched())
schedule_timeout_interruptible(1);
- err = -ERESTARTSYS;
- if (signal_pending(current))
+
+ if (signal_pending(current)) {
+ err = -ERESTARTSYS;
goto out;
+ }
}
+out_unlock:
+ mutex_unlock(&rng_mutex);
out:
return ret ? : err;
}
@@ -280,7 +302,7 @@ int hwrng_register(struct hwrng *rng)
struct hwrng *old_rng, *tmp;
if (rng->name == NULL ||
- rng->data_read == NULL)
+ (rng->data_read == NULL && rng->read == NULL))
goto out;
mutex_lock(&rng_mutex);
diff --git a/drivers/char/hw_random/virtio-rng.c b/drivers/char/hw_random/virtio-rng.c
index 915157fcff9..bdaef8e9402 100644
--- a/drivers/char/hw_random/virtio-rng.c
+++ b/drivers/char/hw_random/virtio-rng.c
@@ -16,6 +16,7 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
+
#include <linux/err.h>
#include <linux/hw_random.h>
#include <linux/scatterlist.h>
@@ -23,78 +24,64 @@
#include <linux/virtio.h>
#include <linux/virtio_rng.h>
-/* The host will fill any buffer we give it with sweet, sweet randomness. We
- * give it 64 bytes at a time, and the hwrng framework takes it 4 bytes at a
- * time. */
-#define RANDOM_DATA_SIZE 64
-
static struct virtqueue *vq;
-static u32 *random_data;
-static unsigned int data_left;
+static unsigned int data_avail;
static DECLARE_COMPLETION(have_data);
+static bool busy;
static void random_recv_done(struct virtqueue *vq)
{
- unsigned int len;
-
/* We can get spurious callbacks, e.g. shared IRQs + virtio_pci. */
- if (!vq->vq_ops->get_buf(vq, &len))
+ if (!vq->vq_ops->get_buf(vq, &data_avail))
return;
- data_left += len;
complete(&have_data);
}
-static void register_buffer(void)
+/* The host will fill any buffer we give it with sweet, sweet randomness. */
+static void register_buffer(u8 *buf, size_t size)
{
struct scatterlist sg;
- sg_init_one(&sg, random_data+data_left, RANDOM_DATA_SIZE-data_left);
+ sg_init_one(&sg, buf, size);
+
/* There should always be room for one buffer. */
- if (vq->vq_ops->add_buf(vq, &sg, 0, 1, random_data) < 0)
+ if (vq->vq_ops->add_buf(vq, &sg, 0, 1, buf) < 0)
BUG();
+
vq->vq_ops->kick(vq);
}
-/* At least we don't udelay() in a loop like some other drivers. */
-static int virtio_data_present(struct hwrng *rng, int wait)
+static int virtio_read(struct hwrng *rng, void *buf, size_t size, bool wait)
{
- if (data_left >= sizeof(u32))
- return 1;
-again:
+ if (!busy) {
+ busy = true;
+ init_completion(&have_data);
+ register_buffer(buf, size);
+ }
+
if (!wait)
return 0;
wait_for_completion(&have_data);
- /* Not enough? Re-register. */
- if (unlikely(data_left < sizeof(u32))) {
- register_buffer();
- goto again;
- }
+ busy = false;
- return 1;
+ return data_avail;
}
-/* virtio_data_present() must have succeeded before this is called. */
-static int virtio_data_read(struct hwrng *rng, u32 *data)
+static void virtio_cleanup(struct hwrng *rng)
{
- BUG_ON(data_left < sizeof(u32));
- data_left -= sizeof(u32);
- *data = random_data[data_left / 4];
-
- if (data_left < sizeof(u32)) {
- init_completion(&have_data);
- register_buffer();
- }
- return sizeof(*data);
+ if (busy)
+ wait_for_completion(&have_data);
}
+
static struct hwrng virtio_hwrng = {
- .name = "virtio",
- .data_present = virtio_data_present,
- .data_read = virtio_data_read,
+ .name = "virtio",
+ .cleanup = virtio_cleanup,
+ .read = virtio_read,
};
static int virtrng_probe(struct virtio_device *vdev)
@@ -112,7 +99,6 @@ static int virtrng_probe(struct virtio_device *vdev)
return err;
}
- register_buffer();
return 0;
}
@@ -138,21 +124,11 @@ static struct virtio_driver virtio_rng = {
static int __init init(void)
{
- int err;
-
- random_data = kmalloc(RANDOM_DATA_SIZE, GFP_KERNEL);
- if (!random_data)
- return -ENOMEM;
-
- err = register_virtio_driver(&virtio_rng);
- if (err)
- kfree(random_data);
- return err;
+ return register_virtio_driver(&virtio_rng);
}
static void __exit fini(void)
{
- kfree(random_data);
unregister_virtio_driver(&virtio_rng);
}
module_init(init);
diff --git a/include/crypto/algapi.h b/include/crypto/algapi.h
index 1ffb53f74d3..fc0d575c71e 100644
--- a/include/crypto/algapi.h
+++ b/include/crypto/algapi.h
@@ -106,7 +106,6 @@ struct blkcipher_walk {
extern const struct crypto_type crypto_ablkcipher_type;
extern const struct crypto_type crypto_aead_type;
extern const struct crypto_type crypto_blkcipher_type;
-extern const struct crypto_type crypto_hash_type;
void crypto_mod_put(struct crypto_alg *alg);
diff --git a/include/crypto/cryptd.h b/include/crypto/cryptd.h
index 2f65a6e8ea4..1c96b255017 100644
--- a/include/crypto/cryptd.h
+++ b/include/crypto/cryptd.h
@@ -39,6 +39,7 @@ static inline struct cryptd_ahash *__cryptd_ahash_cast(
struct cryptd_ahash *cryptd_alloc_ahash(const char *alg_name,
u32 type, u32 mask);
struct crypto_shash *cryptd_ahash_child(struct cryptd_ahash *tfm);
+struct shash_desc *cryptd_shash_desc(struct ahash_request *req);
void cryptd_free_ahash(struct cryptd_ahash *tfm);
#endif
diff --git a/include/linux/crypto.h b/include/linux/crypto.h
index fd929889e8d..24d2e30f1b4 100644
--- a/include/linux/crypto.h
+++ b/include/linux/crypto.h
@@ -250,29 +250,6 @@ struct cipher_alg {
void (*cia_decrypt)(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
};
-struct digest_alg {
- unsigned int dia_digestsize;
- void (*dia_init)(struct crypto_tfm *tfm);
- void (*dia_update)(struct crypto_tfm *tfm, const u8 *data,
- unsigned int len);
- void (*dia_final)(struct crypto_tfm *tfm, u8 *out);
- int (*dia_setkey)(struct crypto_tfm *tfm, const u8 *key,
- unsigned int keylen);
-};
-
-struct hash_alg {
- int (*init)(struct hash_desc *desc);
- int (*update)(struct hash_desc *desc, struct scatterlist *sg,
- unsigned int nbytes);
- int (*final)(struct hash_desc *desc, u8 *out);
- int (*digest)(struct hash_desc *desc, struct scatterlist *sg,
- unsigned int nbytes, u8 *out);
- int (*setkey)(struct crypto_hash *tfm, const u8 *key,
- unsigned int keylen);
-
- unsigned int digestsize;
-};
-
struct compress_alg {
int (*coa_compress)(struct crypto_tfm *tfm, const u8 *src,
unsigned int slen, u8 *dst, unsigned int *dlen);
@@ -293,8 +270,6 @@ struct rng_alg {
#define cra_aead cra_u.aead
#define cra_blkcipher cra_u.blkcipher
#define cra_cipher cra_u.cipher
-#define cra_digest cra_u.digest
-#define cra_hash cra_u.hash
#define cra_compress cra_u.compress
#define cra_rng cra_u.rng
@@ -320,8 +295,6 @@ struct crypto_alg {
struct aead_alg aead;
struct blkcipher_alg blkcipher;
struct cipher_alg cipher;
- struct digest_alg digest;
- struct hash_alg hash;
struct compress_alg compress;
struct rng_alg rng;
} cra_u;
diff --git a/include/linux/hw_random.h b/include/linux/hw_random.h
index 7244456e7e6..9bede7633f7 100644
--- a/include/linux/hw_random.h
+++ b/include/linux/hw_random.h
@@ -22,10 +22,12 @@
* @cleanup: Cleanup callback (can be NULL).
* @data_present: Callback to determine if data is available
* on the RNG. If NULL, it is assumed that
- * there is always data available.
+ * there is always data available. *OBSOLETE*
* @data_read: Read data from the RNG device.
* Returns the number of lower random bytes in "data".
- * Must not be NULL.
+ * Must not be NULL. *OSOLETE*
+ * @read: New API. drivers can fill up to max bytes of data
+ * into the buffer. The buffer is aligned for any type.
* @priv: Private data, for use by the RNG driver.
*/
struct hwrng {
@@ -34,6 +36,7 @@ struct hwrng {
void (*cleanup)(struct hwrng *rng);
int (*data_present)(struct hwrng *rng, int wait);
int (*data_read)(struct hwrng *rng, u32 *data);
+ int (*read)(struct hwrng *rng, void *data, size_t max, bool wait);
unsigned long priv;
/* internal. */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-27 00:11:28 +0000