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Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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We add a report function pointer to struct crypto_type. This function
pointer is used from the crypto userspace configuration API to report
crypto algorithms to userspace.
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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This patch adds a basic userspace configuration API for the crypto layer.
With this it is possible to instantiate, remove and to show crypto
algorithms from userspace.
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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The upcomming crypto usrerspace configuration api needs
to remove the spawns on top on an algorithm, so export
crypto_remove_final.
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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The upcomming crypto usrerspace configuration api needs
to remove the spawns on top on an algorithm, so export
crypto_remove_spawns.
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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The upcomming crypto user configuration api needs to identify
crypto instances. This patch adds a flag that is set if the
algorithm is an instance that is build from templates.
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Patch adds 3-way parallel x86_64 assembly implementation of twofish as new
module. New assembler functions crypt data in three blocks chunks, improving
cipher performance on out-of-order CPUs.
Patch has been tested with tcrypt and automated filesystem tests.
Summary of the tcrypt benchmarks:
Twofish 3-way-asm vs twofish asm (128bit 8kb block ECB)
encrypt: 1.3x speed
decrypt: 1.3x speed
Twofish 3-way-asm vs twofish asm (128bit 8kb block CBC)
encrypt: 1.07x speed
decrypt: 1.4x speed
Twofish 3-way-asm vs twofish asm (128bit 8kb block CTR)
encrypt: 1.4x speed
Twofish 3-way-asm vs AES asm (128bit 8kb block ECB)
encrypt: 1.0x speed
decrypt: 1.0x speed
Twofish 3-way-asm vs AES asm (128bit 8kb block CBC)
encrypt: 0.84x speed
decrypt: 1.09x speed
Twofish 3-way-asm vs AES asm (128bit 8kb block CTR)
encrypt: 1.15x speed
Full output:
http://koti.mbnet.fi/axh/kernel/crypto/tcrypt-speed-twofish-3way-asm-x86_64.txt
http://koti.mbnet.fi/axh/kernel/crypto/tcrypt-speed-twofish-asm-x86_64.txt
http://koti.mbnet.fi/axh/kernel/crypto/tcrypt-speed-aes-asm-x86_64.txt
Tests were run on:
vendor_id : AuthenticAMD
cpu family : 16
model : 10
model name : AMD Phenom(tm) II X6 1055T Processor
Also userspace test were run on:
vendor_id : GenuineIntel
cpu family : 6
model : 15
model name : Intel(R) Xeon(R) CPU E7330 @ 2.40GHz
stepping : 11
Userspace test results:
Encryption/decryption of twofish 3-way vs x86_64-asm on AMD Phenom II:
encrypt: 1.27x
decrypt: 1.25x
Encryption/decryption of twofish 3-way vs x86_64-asm on Intel Xeon E7330:
encrypt: 1.36x
decrypt: 1.36x
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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The ghash_update function passes a pointer to gf128mul_4k_lle which will
be NULL if ghash_setkey is not called or if the most recent call to
ghash_setkey failed to allocate memory. This causes an oops. Fix this
up by returning an error code in the null case.
This is trivially triggered from unprivileged userspace through the
AF_ALG interface by simply writing to the socket without setting a key.
The ghash_final function has a similar issue, but triggering it requires
a memory allocation failure in ghash_setkey _after_ at least one
successful call to ghash_update.
BUG: unable to handle kernel NULL pointer dereference at 00000670
IP: [<d88c92d4>] gf128mul_4k_lle+0x23/0x60 [gf128mul]
*pde = 00000000
Oops: 0000 [#1] PREEMPT SMP
Modules linked in: ghash_generic gf128mul algif_hash af_alg nfs lockd nfs_acl sunrpc bridge ipv6 stp llc
Pid: 1502, comm: hashatron Tainted: G W 3.1.0-rc9-00085-ge9308cf #32 Bochs Bochs
EIP: 0060:[<d88c92d4>] EFLAGS: 00000202 CPU: 0
EIP is at gf128mul_4k_lle+0x23/0x60 [gf128mul]
EAX: d69db1f0 EBX: d6b8ddac ECX: 00000004 EDX: 00000000
ESI: 00000670 EDI: d6b8ddac EBP: d6b8ddc8 ESP: d6b8dda4
DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
Process hashatron (pid: 1502, ti=d6b8c000 task=d6810000 task.ti=d6b8c000)
Stack:
00000000 d69db1f0 00000163 00000000 d6b8ddc8 c101a520 d69db1f0 d52aa000
00000ff0 d6b8dde8 d88d310f d6b8a3f8 d52aa000 00001000 d88d502c d6b8ddfc
00001000 d6b8ddf4 c11676ed d69db1e8 d6b8de24 c11679ad d52aa000 00000000
Call Trace:
[<c101a520>] ? kmap_atomic_prot+0x37/0xa6
[<d88d310f>] ghash_update+0x85/0xbe [ghash_generic]
[<c11676ed>] crypto_shash_update+0x18/0x1b
[<c11679ad>] shash_ahash_update+0x22/0x36
[<c11679cc>] shash_async_update+0xb/0xd
[<d88ce0ba>] hash_sendpage+0xba/0xf2 [algif_hash]
[<c121b24c>] kernel_sendpage+0x39/0x4e
[<d88ce000>] ? 0xd88cdfff
[<c121b298>] sock_sendpage+0x37/0x3e
[<c121b261>] ? kernel_sendpage+0x4e/0x4e
[<c10b4dbc>] pipe_to_sendpage+0x56/0x61
[<c10b4e1f>] splice_from_pipe_feed+0x58/0xcd
[<c10b4d66>] ? splice_from_pipe_begin+0x10/0x10
[<c10b51f5>] __splice_from_pipe+0x36/0x55
[<c10b4d66>] ? splice_from_pipe_begin+0x10/0x10
[<c10b6383>] splice_from_pipe+0x51/0x64
[<c10b63c2>] ? default_file_splice_write+0x2c/0x2c
[<c10b63d5>] generic_splice_sendpage+0x13/0x15
[<c10b4d66>] ? splice_from_pipe_begin+0x10/0x10
[<c10b527f>] do_splice_from+0x5d/0x67
[<c10b6865>] sys_splice+0x2bf/0x363
[<c129373b>] ? sysenter_exit+0xf/0x16
[<c104dc1e>] ? trace_hardirqs_on_caller+0x10e/0x13f
[<c129370c>] sysenter_do_call+0x12/0x32
Code: 83 c4 0c 5b 5e 5f c9 c3 55 b9 04 00 00 00 89 e5 57 8d 7d e4 56 53 8d 5d e4 83 ec 18 89 45 e0 89 55 dc 0f b6 70 0f c1 e6 04 01 d6 <f3> a5 be 0f 00 00 00 4e 89 d8 e8 48 ff ff ff 8b 45 e0 89 da 0f
EIP: [<d88c92d4>] gf128mul_4k_lle+0x23/0x60 [gf128mul] SS:ESP 0068:d6b8dda4
CR2: 0000000000000670
---[ end trace 4eaa2a86a8e2da24 ]---
note: hashatron[1502] exited with preempt_count 1
BUG: scheduling while atomic: hashatron/1502/0x10000002
INFO: lockdep is turned off.
[...]
Signed-off-by: Nick Bowler <nbowler@elliptictech.com>
Cc: stable@kernel.org [2.6.37+]
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Patch adds x86_64 assembly implementation of blowfish. Two set of assembler
functions are provided. First set is regular 'one-block at time'
encrypt/decrypt functions. Second is 'four-block at time' functions that
gain performance increase on out-of-order CPUs. Performance of 4-way
functions should be equal to 1-way functions with in-order CPUs.
Summary of the tcrypt benchmarks:
Blowfish assembler vs blowfish C (256bit 8kb block ECB)
encrypt: 2.2x speed
decrypt: 2.3x speed
Blowfish assembler vs blowfish C (256bit 8kb block CBC)
encrypt: 1.12x speed
decrypt: 2.5x speed
Blowfish assembler vs blowfish C (256bit 8kb block CTR)
encrypt: 2.5x speed
Full output:
http://koti.mbnet.fi/axh/kernel/crypto/tcrypt-speed-blowfish-asm-x86_64.txt
http://koti.mbnet.fi/axh/kernel/crypto/tcrypt-speed-blowfish-c-x86_64.txt
Tests were run on:
vendor_id : AuthenticAMD
cpu family : 16
model : 10
model name : AMD Phenom(tm) II X6 1055T Processor
stepping : 0
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Add ctr(blowfish) speed test to receive results for blowfish x86_64 assembly
patch.
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Rename blowfish to blowfish_generic so that assembler versions of blowfish
cipher can autoload. Module alias 'blowfish' is added.
Also fix checkpatch warnings.
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Patch splits up the blowfish crypto routine into a common part (key setup)
which will be used by blowfish crypto modules (x86_64 assembly and generic-c).
Also fixes errors/warnings reported by checkpatch.
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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As cryptd is depeneded on by other algorithms such as aesni-intel,
it needs to be registered before them. When everything is built
as modules, this occurs naturally. However, for this to work when
they are built-in, we need to use subsys_initcall in cryptd.
Tested-by: Josh Boyer <jwboyer@redhat.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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This is an assembler implementation of the SHA1 algorithm using the
Supplemental SSE3 (SSSE3) instructions or, when available, the
Advanced Vector Extensions (AVX).
Testing with the tcrypt module shows the raw hash performance is up to
2.3 times faster than the C implementation, using 8k data blocks on a
Core 2 Duo T5500. For the smalest data set (16 byte) it is still 25%
faster.
Since this implementation uses SSE/YMM registers it cannot safely be
used in every situation, e.g. while an IRQ interrupts a kernel thread.
The implementation falls back to the generic SHA1 variant, if using
the SSE/YMM registers is not possible.
With this algorithm I was able to increase the throughput of a single
IPsec link from 344 Mbit/s to 464 Mbit/s on a Core 2 Quad CPU using
the SSSE3 variant -- a speedup of +34.8%.
Saving and restoring SSE/YMM state might make the actual throughput
fluctuate when there are FPU intensive userland applications running.
For example, meassuring the performance using iperf2 directly on the
machine under test gives wobbling numbers because iperf2 uses the FPU
for each packet to check if the reporting interval has expired (in the
above test I got min/max/avg: 402/484/464 MBit/s).
Using this algorithm on a IPsec gateway gives much more reasonable and
stable numbers, albeit not as high as in the directly connected case.
Here is the result from an RFC 2544 test run with a EXFO Packet Blazer
FTB-8510:
frame size sha1-generic sha1-ssse3 delta
64 byte 37.5 MBit/s 37.5 MBit/s 0.0%
128 byte 56.3 MBit/s 62.5 MBit/s +11.0%
256 byte 87.5 MBit/s 100.0 MBit/s +14.3%
512 byte 131.3 MBit/s 150.0 MBit/s +14.2%
1024 byte 162.5 MBit/s 193.8 MBit/s +19.3%
1280 byte 175.0 MBit/s 212.5 MBit/s +21.4%
1420 byte 175.0 MBit/s 218.7 MBit/s +25.0%
1518 byte 150.0 MBit/s 181.2 MBit/s +20.8%
The throughput for the largest frame size is lower than for the
previous size because the IP packets need to be fragmented in this
case to make there way through the IPsec tunnel.
Signed-off-by: Mathias Krause <minipli@googlemail.com>
Cc: Maxim Locktyukhin <maxim.locktyukhin@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Export the update function as crypto_sha1_update() to not have the need
to reimplement the same algorithm for each SHA-1 implementation. This
way the generic SHA-1 implementation can be used as fallback for other
implementations that fail to run under certain circumstances, like the
need for an FPU context while executing in IRQ context.
Signed-off-by: Mathias Krause <minipli@googlemail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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We are going to use this for TCP/IP sequence number and fragment ID
generation.
Signed-off-by: David S. Miller <davem@davemloft.net>
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This allows us to move duplicated code in <asm/atomic.h>
(atomic_inc_not_zero() for now) to <linux/atomic.h>
Signed-off-by: Arun Sharma <asharma@fb.com>
Reviewed-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: David Miller <davem@davemloft.net>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (43 commits)
fs: Merge split strings
treewide: fix potentially dangerous trailing ';' in #defined values/expressions
uwb: Fix misspelling of neighbourhood in comment
net, netfilter: Remove redundant goto in ebt_ulog_packet
trivial: don't touch files that are removed in the staging tree
lib/vsprintf: replace link to Draft by final RFC number
doc: Kconfig: `to be' -> `be'
doc: Kconfig: Typo: square -> squared
doc: Konfig: Documentation/power/{pm => apm-acpi}.txt
drivers/net: static should be at beginning of declaration
drivers/media: static should be at beginning of declaration
drivers/i2c: static should be at beginning of declaration
XTENSA: static should be at beginning of declaration
SH: static should be at beginning of declaration
MIPS: static should be at beginning of declaration
ARM: static should be at beginning of declaration
rcu: treewide: Do not use rcu_read_lock_held when calling rcu_dereference_check
Update my e-mail address
PCIe ASPM: forcedly -> forcibly
gma500: push through device driver tree
...
Fix up trivial conflicts:
- arch/arm/mach-ep93xx/dma-m2p.c (deleted)
- drivers/gpio/gpio-ep93xx.c (renamed and context nearby)
- drivers/net/r8169.c (just context changes)
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* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (34 commits)
crypto: caam - ablkcipher support
crypto: caam - faster aead implementation
crypto: caam - structure renaming
crypto: caam - shorter names
crypto: talitos - don't bad_key in ablkcipher setkey
crypto: talitos - remove unused giv from ablkcipher methods
crypto: talitos - don't set done notification in hot path
crypto: talitos - ensure request ordering within a single tfm
crypto: gf128mul - fix call to memset()
crypto: s390 - support hardware accelerated SHA-224
crypto: algif_hash - Handle initial af_alg_make_sg error correctly
crypto: sha1_generic - use SHA1_BLOCK_SIZE
hwrng: ppc4xx - add support for ppc4xx TRNG
crypto: crypto4xx - Perform read/modify/write on device control register
crypto: caam - fix build warning when DEBUG_FS not configured
crypto: arc4 - Fixed coding style issues
crypto: crc32c - Fixed coding style issue
crypto: omap-sham - do not schedule tasklet if there is no active requests
crypto: omap-sham - clear device flags when finishing request
crypto: omap-sham - irq handler must not clear error code
...
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Also, a comma was inserted to offset a modifier.
Signed-off-by: Michael Witten <mfwitten@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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In gf128mul_lle() and gf128mul_bbe() r isn't completely initialized with
zero because the size argument passed to memset() is the size of the
pointer, not the structure it points to.
Luckily there are no in-kernel users of those functions so the ABI
change implied by this fix should break no existing code.
Based on a patch by the PaX Team.
Signed-off-by: Mathias Krause <minipli@googlemail.com>
Cc: PaX Team <pageexec@freemail.hu>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
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When the first call to af_alg_make_sg fails, we may return garbage
instead of the real error. This patch fixes it by setting the error
if "copied" is zero.
Based on a patch by Jesper Juhl.
Reported-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Modify sha1_update to use SHA1_BLOCK_SIZE.
Signed-off-by: Mandeep Singh Baines <msb@chromium.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Fixed coding style issues: unnecessary spaces, parentheses on wrong lines.
Signed-off-by: Mati Vait <mativait@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Removed coding style issue: space before tabs.
Signed-off-by: Mati Vait <mativait@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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CRYPTO_GHASH_CLMUL_NI_INTEL and CRYPTO_AES_NI_INTEL cannot be used
on UML.
Commit 3e02e5cb and 54b6a1b enabled them by accident.
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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FIPS compliance requires a known-answer self-test for all approved
cipher and mode combinations, for all valid key sizes. Presently,
there are only self-tests for xts-aes-128. This adds a 256-bit one,
pulled from the same reference document, which should satisfy the
requirement.
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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They are 64K and result in order-4 allocations, even with SLUB.
Therefore, just like we always have for the deflate buffers, use
vmalloc.
Reported-by: Martin Jackson <mjackson220.list@gmail.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Remove linux/mm.h inclusion from netdevice.h -- it's unused (I've checked manually).
To prevent mm.h inclusion via other channels also extract "enum dma_data_direction"
definition into separate header. This tiny piece is what gluing netdevice.h with mm.h
via "netdevice.h => dmaengine.h => dma-mapping.h => scatterlist.h => mm.h".
Removal of mm.h from scatterlist.h was tried and was found not feasible
on most archs, so the link was cutoff earlier.
Hope people are OK with tiny include file.
Note, that mm_types.h is still dragged in, but it is a separate story.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (45 commits)
crypto: caam - add support for sha512 variants of existing AEAD algorithms
crypto: caam - remove unused authkeylen from caam_ctx
crypto: caam - fix decryption shared vs. non-shared key setting
crypto: caam - platform_bus_type migration
crypto: aesni-intel - fix aesni build on i386
crypto: aesni-intel - Merge with fpu.ko
crypto: mv_cesa - make count_sgs() null-pointer proof
crypto: mv_cesa - copy remaining bytes to SRAM only when needed
crypto: mv_cesa - move digest state initialisation to a better place
crypto: mv_cesa - fill inner/outer IV fields only in HMAC case
crypto: mv_cesa - refactor copy_src_to_buf()
crypto: mv_cesa - no need to save digest state after the last chunk
crypto: mv_cesa - print a warning when registration of AES algos fail
crypto: mv_cesa - drop this call to mv_hash_final from mv_hash_finup
crypto: mv_cesa - the descriptor pointer register needs to be set just once
crypto: mv_cesa - use ablkcipher_request_cast instead of the manual container_of
crypto: caam - fix printk recursion for long error texts
crypto: caam - remove unused keylen from session context
hwrng: amd - enable AMD hw rnd driver for Maple PPC boards
hwrng: amd - manage resource allocation
...
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Loading fpu without aesni-intel does nothing. Loading aesni-intel
without fpu causes modes like xts to fail. (Unloading
aesni-intel will restore those modes.)
One solution would be to make aesni-intel depend on fpu, but it
seems cleaner to just combine the modules.
This is probably responsible for bugs like:
https://bugzilla.redhat.com/show_bug.cgi?id=589390
Signed-off-by: Andy Lutomirski <luto@mit.edu>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Add the CTR mode speed test for AES.
Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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the fix add testcase for testing aes ofb mode.
Signed-off-by: Puneet Saxena <puneets@nvidia.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Fixes generated by 'codespell' and manually reviewed.
Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
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Instead of always creating a huge (268K) deflate_workspace with the
maximum compression parameters (windowBits=15, memLevel=8), allow the
caller to obtain a smaller workspace by specifying smaller parameter
values.
For example, when capturing oops and panic reports to a medium with
limited capacity, such as NVRAM, compression may be the only way to
capture the whole report. In this case, a small workspace (24K works
fine) is a win, whether you allocate the workspace when you need it (i.e.,
during an oops or panic) or at boot time.
I've verified that this patch works with all accepted values of windowBits
(positive and negative), memLevel, and compression level.
Signed-off-by: Jim Keniston <jkenisto@us.ibm.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: David Miller <davem@davemloft.net>
Cc: Chris Mason <chris.mason@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1480 commits)
bonding: enable netpoll without checking link status
xfrm: Refcount destination entry on xfrm_lookup
net: introduce rx_handler results and logic around that
bonding: get rid of IFF_SLAVE_INACTIVE netdev->priv_flag
bonding: wrap slave state work
net: get rid of multiple bond-related netdevice->priv_flags
bonding: register slave pointer for rx_handler
be2net: Bump up the version number
be2net: Copyright notice change. Update to Emulex instead of ServerEngines
e1000e: fix kconfig for crc32 dependency
netfilter ebtables: fix xt_AUDIT to work with ebtables
xen network backend driver
bonding: Improve syslog message at device creation time
bonding: Call netif_carrier_off after register_netdevice
bonding: Incorrect TX queue offset
net_sched: fix ip_tos2prio
xfrm: fix __xfrm_route_forward()
be2net: Fix UDP packet detected status in RX compl
Phonet: fix aligned-mode pipe socket buffer header reserve
netxen: support for GbE port settings
...
Fix up conflicts in drivers/staging/brcm80211/brcmsmac/wl_mac80211.c
with the staging updates.
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ESP with separate encryption/authentication algorithms needs a special
treatment for the associated data. This patch add a new algorithm that
handles esp with extended sequence numbers.
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
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