GitHub/moto-9609/android_kernel_motorola_exynos9610.git
16 years ago[CRYPTO] api: Sanitise mask when allocating ablkcipher/hash
Herbert Xu [Sat, 1 Dec 2007 10:47:07 +0000 (21:47 +1100)]
[CRYPTO] api: Sanitise mask when allocating ablkcipher/hash

When allocating ablkcipher/hash objects, we use a mask that's wider than
the usual type mask.  This patch sanitises the mask supplied by the user
so we don't end up using a narrower mask which may lead to unintended
results.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] authenc: Select HASH in Kconfig
Borislav Petkov [Fri, 14 Dec 2007 08:43:32 +0000 (16:43 +0800)]
[CRYPTO] authenc: Select HASH in Kconfig

i get here:

----
  LD      vmlinux
  SYSMAP  System.map
  SYSMAP  .tmp_System.map
  Building modules, stage 2.
  MODPOST 226 modules
ERROR: "crypto_hash_type" [crypto/authenc.ko] undefined!
make[1]: *** [__modpost] Error 1
make: *** [modules] Error 2
---

which fails because crypto_hash_type is declared in crypto/hash.c. You might wanna
fix it like so:

Signed-off-by: Borislav Petkov <bbpetkov@yahoo.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] geode: Add __dev{init,exit} annotations
Adrian Bunk [Wed, 12 Dec 2007 02:42:41 +0000 (10:42 +0800)]
[CRYPTO] geode: Add __dev{init,exit} annotations

This patch adds __dev{init,exit} annotations.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] authenc: Merge common hashing code
Herbert Xu [Mon, 10 Dec 2007 08:15:41 +0000 (16:15 +0800)]
[CRYPTO] authenc: Merge common hashing code

This patch merges the common hashing code between encryption and decryption.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] authenc: Use RTA_OK to check length
Herbert Xu [Mon, 10 Dec 2007 02:55:21 +0000 (10:55 +0800)]
[CRYPTO] authenc: Use RTA_OK to check length

This patch changes setkey to use RTA_OK to check the validity of the
setkey request.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] authenc: Fix typo in ivsize
Herbert Xu [Mon, 10 Dec 2007 02:54:44 +0000 (10:54 +0800)]
[CRYPTO] authenc: Fix typo in ivsize

The ivsize should be fetched from ablkcipher, not blkcipher.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] s390-aes: Use correct encrypt/decrypt function in fallback
Sebastian Siewior [Mon, 10 Dec 2007 07:49:41 +0000 (15:49 +0800)]
[CRYPTO] s390-aes: Use correct encrypt/decrypt function in fallback

crypto_blkcipher_decrypt is wrong because it does not care about
the IV.

Signed-off-by: Sebastian Siewior <sebastian@breakpoint.cc>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] geode: Use correct encrypt/decrypt function in fallback
Sebastian Siewior [Mon, 10 Dec 2007 07:48:17 +0000 (15:48 +0800)]
[CRYPTO] geode: Use correct encrypt/decrypt function in fallback

crypto_blkcipher_decrypt is wrong because it does not care about
the IV.

Signed-off-by: Sebastian Siewior <sebastian@breakpoint.cc>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] tcrypt: Added salsa20 speed test
Tan Swee Heng [Fri, 7 Dec 2007 09:17:43 +0000 (17:17 +0800)]
[CRYPTO] tcrypt: Added salsa20 speed test

This patch adds a simple speed test for salsa20.
Usage: modprobe tcrypt mode=206

Signed-of-by: Tan Swee Heng <thesweeheng@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] lzo: Add LZO compression algorithm support
Zoltan Sogor [Fri, 7 Dec 2007 08:53:23 +0000 (16:53 +0800)]
[CRYPTO] lzo: Add LZO compression algorithm support

Add LZO compression algorithm support

Signed-off-by: Zoltan Sogor <weth@inf.u-szeged.hu>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] tcrypt: Add common compression tester function
Zoltan Sogor [Fri, 7 Dec 2007 08:48:11 +0000 (16:48 +0800)]
[CRYPTO] tcrypt: Add common compression tester function

Add common compression tester function
Modify deflate test case to use the common compressor test function

Signed-off-by: Zoltan Sogor <weth@inf.u-szeged.hu>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] tcrypt: Salsa20 large test vector
Tan Swee Heng [Fri, 7 Dec 2007 08:41:29 +0000 (16:41 +0800)]
[CRYPTO] tcrypt: Salsa20 large test vector

This is a large test vector for Salsa20 that crosses the 4096-bytes
page boundary.

Signed-off-by: Tan Swee Heng <thesweeheng@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] salsa20_generic: Fix multi-page processing
Tan Swee Heng [Fri, 7 Dec 2007 08:38:45 +0000 (16:38 +0800)]
[CRYPTO] salsa20_generic: Fix multi-page processing

This patch fixes the multi-page processing bug that affects large test
vectors (the same bug that previously affected ctr.c).

There is an optimization for the case walk.nbytes == nbytes. Also we
now use crypto_xor() instead of adhoc XOR routines.

Signed-off-by: Tan Swee Heng <thesweeheng@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] gcm: Put abreq in private context instead of on stack
Herbert Xu [Thu, 6 Dec 2007 06:59:53 +0000 (14:59 +0800)]
[CRYPTO] gcm: Put abreq in private context instead of on stack

The abreq structure is currently allocated on the stack.  This is broken
if the underlying algorithm is asynchronous.  This patch changes it so
that it's taken from the private context instead which has been enlarged
accordingly.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] scatterwalk: Restore custom sg chaining for now
Herbert Xu [Wed, 5 Dec 2007 09:59:25 +0000 (20:59 +1100)]
[CRYPTO] scatterwalk: Restore custom sg chaining for now

Unfortunately the generic chaining hasn't been ported to all architectures
yet, and notably not s390.  So this patch restores the chainging that we've
been using previously which does work everywhere.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] scatterwalk: Move scatterwalk.h to linux/crypto
Herbert Xu [Fri, 7 Dec 2007 10:52:49 +0000 (18:52 +0800)]
[CRYPTO] scatterwalk: Move scatterwalk.h to linux/crypto

The scatterwalk infrastructure is used by algorithms so it needs to
move out of crypto for future users that may live in drivers/crypto
or asm/*/crypto.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] aead: Return EBADMSG for ICV mismatch
Herbert Xu [Tue, 4 Dec 2007 09:07:27 +0000 (20:07 +1100)]
[CRYPTO] aead: Return EBADMSG for ICV mismatch

This patch changes gcm/authenc to return EBADMSG instead of EINVAL for
ICV mismatches.  This convention has already been adopted by IPsec.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] gcm: Fix ICV handling
Herbert Xu [Tue, 4 Dec 2007 08:17:50 +0000 (19:17 +1100)]
[CRYPTO] gcm: Fix ICV handling

The crypto_aead convention for ICVs is to include it directly in the
output.  If we decided to change this in future then we would make
the ICV (if the algorithm has an explicit one) available in the
request itself.

For now no algorithm needs this so this patch changes gcm to conform
to this convention.  It also adjusts the tcrypt aead tests to take
this into account.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] tcrypt: Make gcm available as a standalone test
Herbert Xu [Sun, 2 Dec 2007 03:55:47 +0000 (14:55 +1100)]
[CRYPTO] tcrypt: Make gcm available as a standalone test

Currently the gcm(aes) tests have to be taken together with all other
ciphers.  This patch makes it available by itself at number 35.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] authenc: Fix hash verification
Herbert Xu [Tue, 4 Dec 2007 09:04:21 +0000 (20:04 +1100)]
[CRYPTO] authenc: Fix hash verification

The previous code incorrectly included the hash in the verification which
also meant that we'd crash and burn when it comes to actually verifying
the hash since we'd go past the end of the SG list.

This patch fixes that by subtracting authsize from cryptlen at the start.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] authenc: Move enckeylen into key itself
Herbert Xu [Thu, 22 Nov 2007 15:11:53 +0000 (23:11 +0800)]
[CRYPTO] authenc: Move enckeylen into key itself

Having enckeylen as a template parameter makes it a pain for hardware
devices that implement ciphers with many key sizes since each one would
have to be registered separately.

Since the authenc algorithm is mainly used for legacy purposes where its
key is going to be constructed out of two separate keys, we can in fact
embed this value into the key itself.

This patch does this by prepending an rtnetlink header to the key that
contains the encryption key length.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] aead: Make authsize a run-time parameter
Herbert Xu [Sun, 2 Dec 2007 07:49:21 +0000 (18:49 +1100)]
[CRYPTO] aead: Make authsize a run-time parameter

As it is authsize is an algorithm paramter which cannot be changed at
run-time.  This is inconvenient because hardware that implements such
algorithms would have to register each authsize that they support
separately.

Since authsize is a property common to all AEAD algorithms, we can add
a function setauthsize that sets it at run-time, just like setkey.

This patch does exactly that and also changes authenc so that authsize
is no longer a parameter of its template.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] authenc: Use or instead of max on alignment masks
Herbert Xu [Thu, 22 Nov 2007 14:46:40 +0000 (22:46 +0800)]
[CRYPTO] authenc: Use or instead of max on alignment masks

Since alignment masks are always one less than a power of two, we can
use binary or to find their maximum.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[HWRNG] pasemi: Add missing wait argument to data_present
Kamalesh Babulal [Sat, 1 Dec 2007 01:52:35 +0000 (12:52 +1100)]
[HWRNG] pasemi: Add missing wait argument to data_present

drivers/char/hw_random/pasemi-rng.c: In function `pasemi_rng_data_present':
drivers/char/hw_random/pasemi-rng.c:53: error: `wait' undeclared (first use in this function)
drivers/char/hw_random/pasemi-rng.c:53: error: (Each undeclared identifier is reported only once
drivers/char/hw_random/pasemi-rng.c:53: error: for each function it appears in.)
drivers/char/hw_random/pasemi-rng.c: At top level:
drivers/char/hw_random/pasemi-rng.c:93: warning: initialization from incompatible pointer type

Signed-off-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] aes_s390: Add fallback driver
Sebastian Siewior [Sat, 1 Dec 2007 01:47:37 +0000 (12:47 +1100)]
[CRYPTO] aes_s390: Add fallback driver

Some CPUs support only 128 bit keys in HW. This patch adds SW fallback
support for the other keys which may be required. The generic algorithm
(and the block mode) must be availble in case of a fallback.

Signed-off-by: Sebastian Siewior <sebastian@breakpoint.cc>
Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] tcrypt: Use print_hex_dump from linux/kernel.h
Denis Cheng [Fri, 30 Nov 2007 05:59:30 +0000 (16:59 +1100)]
[CRYPTO] tcrypt: Use print_hex_dump from linux/kernel.h

These utilities implemented in lib/hexdump.c are more handy, please use this.

Signed-off-by: Denis Cheng <crquan@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] geode: do not copy the IV too often
Sebastian Siewior [Fri, 30 Nov 2007 05:36:57 +0000 (16:36 +1100)]
[CRYPTO] geode: do not copy the IV too often

There is no reason to keep the IV in the private structre. Instead keep
just a pointer to make the patch smaller :)
This also remove a few memcpy()s

Signed-off-by: Sebastian Siewior <sebastian@breakpoint.cc>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] tcrypt: AES CBC test vectors from NIST SP800-38A
Jan Glauber [Fri, 30 Nov 2007 04:57:05 +0000 (15:57 +1100)]
[CRYPTO] tcrypt: AES CBC test vectors from NIST SP800-38A

Add test vectors to tcrypt for AES in CBC mode for key sizes 192 and 256.
The test vectors are copied from NIST SP800-38A.

Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] tcrypt: AES CTR large test vector
Tan Swee Heng [Thu, 29 Nov 2007 13:36:07 +0000 (00:36 +1100)]
[CRYPTO] tcrypt: AES CTR large test vector

This patch adds a large AES CTR mode test vector. The test vector is
4100 bytes in size. It was generated using a C++ program that called
Crypto++.

Note that this patch increases considerably the size of "struct
cipher_testvec" and hence the size of tcrypt.ko.

Signed-off-by: Tan Swee Heng <thesweeheng@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] tcrypt: Support for large test vectors
Tan Swee Heng [Thu, 29 Nov 2007 13:30:11 +0000 (00:30 +1100)]
[CRYPTO] tcrypt: Support for large test vectors

Currently the number of entries in a cipher test vector template is
limited by TVMEMSIZE/sizeof(struct cipher_testvec). This patch
circumvents the problem by pointing cipher_tv to each entry in the
template, rather than the template itself.

Signed-off-by: Tan Swee Heng <thesweeheng@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] ctr: Fix multi-page processing
Herbert Xu [Thu, 29 Nov 2007 13:23:53 +0000 (00:23 +1100)]
[CRYPTO] ctr: Fix multi-page processing

When the data spans across a page boundary, CTR may incorrectly process
a partial block in the middle because the blkcipher walking code may
supply partial blocks in the middle as long as the total length of the
supplied data is more than a block.  CTR is supposed to return any unused
partial block in that case to the walker.

This patch fixes this by doing exactly that, returning partial blocks to
the walker unless we received less than a block-worth of data to start
with.

This also allows us to optimise the bulk of the processing since we no
longer have to worry about partial blocks until the very end.

Thanks to Tan Swee Heng for fixes and actually testing this :)

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] aes-asm: Merge common glue code
Sebastian Siewior [Thu, 29 Nov 2007 13:15:11 +0000 (00:15 +1100)]
[CRYPTO] aes-asm: Merge common glue code

32 bit and 64 bit glue code is using (now) the same
piece code. This patch unifies them.

Signed-off-by: Sebastian Siewior <sebastian@breakpoint.cc>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] gcm: New algorithm
Mikko Herranen [Mon, 26 Nov 2007 14:24:11 +0000 (22:24 +0800)]
[CRYPTO] gcm: New algorithm

Add GCM/GMAC support to cryptoapi.

GCM (Galois/Counter Mode) is an AEAD mode of operations for any block cipher
with a block size of 16.  The typical example is AES-GCM.

Signed-off-by: Mikko Herranen <mh1@iki.fi>
Reviewed-by: Mika Kukkonen <mika.kukkonen@nsn.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] tcrypt: Add aead support
Mikko Herranen [Mon, 26 Nov 2007 14:12:07 +0000 (22:12 +0800)]
[CRYPTO] tcrypt: Add aead support

Add AEAD support to tcrypt, needed by GCM.

Signed-off-by: Mikko Herranen <mh1@iki.fi>
Reviewed-by: Mika Kukkonen <mika.kukkonen@nsn.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] camellia: Move more common code into camellia_setup_tail
Denys Vlasenko [Fri, 23 Nov 2007 13:21:03 +0000 (21:21 +0800)]
[CRYPTO] camellia: Move more common code into camellia_setup_tail

Analogously to camellia7 patch, move
"absorb kw2 to other subkeys" and "absorb kw4 to other subkeys"
code parts into camellia_setup_tail(). This further reduces
source and object code size at the cost of two brances
in key setup code.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] camellia: Move common code into camellia_setup_tail
Denys Vlasenko [Fri, 23 Nov 2007 13:14:24 +0000 (21:14 +0800)]
[CRYPTO] camellia: Move common code into camellia_setup_tail

Move "key XOR is end of F-function" code part into
camellia_setup_tail(), it is sufficiently similar
between camellia_setup128 and camellia_setup256.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] camellia: Merge encrypt/decrypt routines for all key lengths
Denys Vlasenko [Fri, 23 Nov 2007 13:10:03 +0000 (21:10 +0800)]
[CRYPTO] camellia: Merge encrypt/decrypt routines for all key lengths

unifies encrypt/decrypt routines for different key lengths.
This reduces module size by ~25%, with tiny (less than 1%)
speed impact.
Also collapses encrypt/decrypt into more readable
(visually shorter) form using macros.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] camellia: Code shrink
Denys Vlasenko [Fri, 23 Nov 2007 13:05:55 +0000 (21:05 +0800)]
[CRYPTO] camellia: Code shrink

Remove unused macro params.
Use (u8)(expr) instead of (expr) & 0xff,
helps gcc to realize how to use simpler commands.
Move CAMELLIA_FLS macro closer to encrypt/decrypt routines.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] ctr: Use crypto_inc and crypto_xor
Herbert Xu [Tue, 20 Nov 2007 12:32:56 +0000 (20:32 +0800)]
[CRYPTO] ctr: Use crypto_inc and crypto_xor

This patch replaces the custom inc/xor in CTR with the generic functions.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] pcbc: Use crypto_xor
Herbert Xu [Tue, 20 Nov 2007 09:49:49 +0000 (17:49 +0800)]
[CRYPTO] pcbc: Use crypto_xor

This patch replaces the custom xor in CBC with the generic crypto_xor.

It changes the operations for in-place encryption slightly to avoid
calling crypto_xor with tmpbuf since it is not necessarily aligned.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] cbc: Require block size to be a power of 2
Herbert Xu [Tue, 20 Nov 2007 09:36:00 +0000 (17:36 +0800)]
[CRYPTO] cbc: Require block size to be a power of 2

All common block ciphers have a block size that's a power of 2.  In fact,
all of our block ciphers obey this rule.

If we require this then CBC can be optimised to avoid an expensive divide
on in-place decryption.

I've also changed the saving of the first IV in the in-place decryption
case to the last IV because that lets us use walk->iv (which is already
aligned) for the xor operation where alignment is required.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] cbc: Use crypto_xor
Herbert Xu [Tue, 20 Nov 2007 09:33:39 +0000 (17:33 +0800)]
[CRYPTO] cbc: Use crypto_xor

This patch replaces the custom xor in CBC with the generic crypto_xor.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] api: Add crypto_inc and crypto_xor
Herbert Xu [Tue, 20 Nov 2007 09:26:06 +0000 (17:26 +0800)]
[CRYPTO] api: Add crypto_inc and crypto_xor

With the addition of more stream ciphers we need to curb the proliferation
of ad-hoc xor functions.  This patch creates a generic pair of functions,
crypto_inc and crypto_xor which does big-endian increment and exclusive or,
respectively.

For optimum performance, they both use u32 operations so alignment must be
as that of u32 even though the arguments are of type u8 *.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[HIFN]: Add support for using the random number generator
Patrick McHardy [Wed, 21 Nov 2007 04:51:52 +0000 (12:51 +0800)]
[HIFN]: Add support for using the random number generator

Signed-off-by: Patrick McHardy <kaber@trash.net>
Acked-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[HIFN]: Improve PLL initialization
Patrick McHardy [Wed, 21 Nov 2007 04:47:13 +0000 (12:47 +0800)]
[HIFN]: Improve PLL initialization

The current PLL initalization has a number of deficiencies:

- uses fixed multiplier of 8, which overclocks the chip when using a
  reference clock that operates at frequencies above 33MHz. According
  to a comment in the BSD source, this is true for the external clock
  on almost all every board.

- writes to a reserved bit

- doesn't follow the initialization procedure specified in chapter
  6.11.1 of the HIFN hardware users guide

- doesn't allow to use the PCI clock

This patch adds a module parameter to specify the reference clock
(pci or external) and its frequency and uses that to calculate the
optimum multiplier to reach the maximal speed. By default it uses
the external clock and assumes a speed of 66MHz, which effectively
halfs the frequency currently used.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Acked-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[HWRNG]: move status polling loop to data_present callbacks
Patrick McHardy [Wed, 21 Nov 2007 04:24:45 +0000 (12:24 +0800)]
[HWRNG]: move status polling loop to data_present callbacks

Handle waiting for new random within the drivers themselves, this allows to
use better suited timeouts for the individual rngs.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Acked-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] salsa20: Salsa20 stream cipher
Tan Swee Heng [Fri, 23 Nov 2007 11:45:00 +0000 (19:45 +0800)]
[CRYPTO] salsa20: Salsa20 stream cipher

This patch implements the Salsa20 stream cipher using the blkcipher interface.

The core cipher code comes from Daniel Bernstein's submission to eSTREAM:
  http://www.ecrypt.eu.org/stream/svn/viewcvs.cgi/ecrypt/trunk/submissions/salsa20/full/ref/

The test vectors comes from:
  http://www.ecrypt.eu.org/stream/svn/viewcvs.cgi/ecrypt/trunk/submissions/salsa20/full/

It has been tested successfully with "modprobe tcrypt mode=34" on an
UML instance.

Signed-off-by: Tan Swee Heng <thesweeheng@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] ablkcipher: Add distinct ABLKCIPHER type
Herbert Xu [Thu, 15 Nov 2007 14:36:07 +0000 (22:36 +0800)]
[CRYPTO] ablkcipher: Add distinct ABLKCIPHER type

Up until now we have ablkcipher algorithms have been identified as
type BLKCIPHER with the ASYNC bit set.  This is suboptimal because
ablkcipher refers to two things.  On the one hand it refers to the
top-level ablkcipher interface with requests.  On the other hand it
refers to and algorithm type underneath.

As it is you cannot request a synchronous block cipher algorithm
with the ablkcipher interface on top.  This is a problem because
we want to be able to eventually phase out the blkcipher top-level
interface.

This patch fixes this by making ABLKCIPHER its own type, just as
we have distinct types for HASH and DIGEST.  The type it associated
with the algorithm implementation only.

Which top-level interface is used for synchronous block ciphers is
then determined by the mask that's used.  If it's a specific mask
then the old blkcipher interface is given, otherwise we go with the
new ablkcipher interface.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] doc: Update api-intro.txt
Herbert Xu [Thu, 15 Nov 2007 11:00:06 +0000 (19:00 +0800)]
[CRYPTO] doc: Update api-intro.txt

This patch updates the list of transforms we support and clarifies that
the Block Ciphers interface in fact supports all ciphers including stream
ciphers.

It also removes the obsolete Configuration Notes section and adds the
linux-crypto mailing list as the primary bug reporting address.

Finally it documents the fact that setkey should only be called from
user context.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] scatterwalk: Use generic scatterlist chaining
Herbert Xu [Thu, 15 Nov 2007 04:08:45 +0000 (12:08 +0800)]
[CRYPTO] scatterwalk: Use generic scatterlist chaining

This patch converts the crypto scatterwalk code to use the generic
scatterlist chaining rather the version specific to crypto.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] hifn: Add missing includes
Andrew Morton [Tue, 13 Nov 2007 13:55:28 +0000 (21:55 +0800)]
[CRYPTO] hifn: Add missing includes

alpha:

drivers/crypto/hifn_795x.c: In function 'ablkcipher_walk_init':
drivers/crypto/hifn_795x.c:1231: error: implicit declaration of function 'sg_init_table'
drivers/crypto/hifn_795x.c:1243: error: implicit declaration of function 'sg_set_page'
drivers/crypto/hifn_795x.c: In function 'ablkcipher_walk_exit':
drivers/crypto/hifn_795x.c:1257: error: implicit declaration of function 'sg_page'
drivers/crypto/hifn_795x.c:1257: warning: passing argument 1 of '__free_pages' makes pointer from integer without a cast
drivers/crypto/hifn_795x.c: In function 'ablkcipher_add':
drivers/crypto/hifn_795x.c:1278: warning: passing argument 1 of 'kmap_atomic' makes pointer from integer without a cast
drivers/crypto/hifn_795x.c: In function 'ablkcipher_walk':
drivers/crypto/hifn_795x.c:1336: warning: passing argument 1 of 'kmap_atomic' makes pointer from integer without a cast
drivers/crypto/hifn_795x.c: In function 'hifn_setup_session':
drivers/crypto/hifn_795x.c:1465: warning: assignment makes pointer from integer without a cast
drivers/crypto/hifn_795x.c:1469: warning: assignment makes pointer from integer without a cast
drivers/crypto/hifn_795x.c:1472: warning: assignment makes pointer from integer without a cast
drivers/crypto/hifn_795x.c: In function 'ablkcipher_get':
drivers/crypto/hifn_795x.c:1593: warning: passing argument 1 of 'kmap_atomic' makes pointer from integer without a cast
{standard input}: Assembler messages:
{standard input}:7: Warning: setting incorrect section attributes for .got
drivers/crypto/hifn_795x.c: In function 'hifn_process_ready':
drivers/crypto/hifn_795x.c:1653: warning: passing argument 1 of 'kmap_atomic' makes pointer from integer without a cast
drivers/crypto/hifn_795x.c: In function 'hifn_probe':
drivers/crypto/hifn_795x.c:2438: error: 'DMA_32BIT_MASK' undeclared (first use in this function)
drivers/crypto/hifn_795x.c:2438: error: (Each undeclared identifier is reported only once
drivers/crypto/hifn_795x.c:2438: error: for each function it appears in.)
drivers/crypto/hifn_795x.c:2443: warning: format '%d' expects type 'int', but argument 4 has type 'long int'
drivers/crypto/hifn_795x.c:2443: warning: format '%d' expects type 'int', but argument 4 has type 'long int'

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] hifn: Make Kconfig option depend on PCI
Jan Glauber [Mon, 12 Nov 2007 13:56:38 +0000 (21:56 +0800)]
[CRYPTO] hifn: Make Kconfig option depend on PCI

The HIFN driver is currently selectable on s390 but wont compile.
Since it looks like HIFN needs PCI make the Kconfig dependent on PCI,
which is not available on s390.

Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Acked-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] hifn: Schedule callback invocation to tasklet.
Evgeniy Polyakov [Sat, 10 Nov 2007 12:24:18 +0000 (20:24 +0800)]
[CRYPTO] hifn: Schedule callback invocation to tasklet.

This patch forces HIFN driver to invoke crypto request callbacks from
tasklet (softirq context) instead of hardirq context, since network
stack expects it to be called from bottom halves.

It is done by simply scheduling callback invocation via dedicated
tasklet. Workqueue solution was dropped because of tooo slow
rescheduling performance (7 times slower than tasklet, for mode details
one can check this link:
http://tservice.net.ru/~s0mbre/blog/devel/other/2007_11_09.html).

Driver passed all AES and DES tests in tcryt.c module.

Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] sha256-generic: Extend sha256_generic.c to support SHA-224
Jonathan Lynch [Sat, 10 Nov 2007 12:08:25 +0000 (20:08 +0800)]
[CRYPTO] sha256-generic: Extend sha256_generic.c to support SHA-224

Resubmitting this patch which extends sha256_generic.c to support SHA-224 as
described in FIPS 180-2 and RFC 3874. HMAC-SHA-224 as described in RFC4231
is then supported through the hmac interface.

Patch includes test vectors for SHA-224 and HMAC-SHA-224.

SHA-224 chould be chosen as a hash algorithm when 112 bits of security
strength is required.

Patch generated against the 2.6.24-rc1 kernel and tested against
2.6.24-rc1-git14 which includes fix for scatter gather implementation for HMAC.

Signed-off-by: Jonathan Lynch <jonathan.lynch@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] geode: Add fallback for unsupported modes
Sebastian Siewior [Sat, 10 Nov 2007 11:29:33 +0000 (19:29 +0800)]
[CRYPTO] geode: Add fallback for unsupported modes

The Geode AES crypto engine supports only 128 bit long key. This
patch adds fallback for other key sizes which are required by the
AES standard.

Signed-off-by: Sebastian Siewior <sebastian@breakpoint.cc>
Acked-by: Jordan Crouse <jordan.crouse@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] aes-i586: Remove setkey
Sebastian Siewior [Sat, 10 Nov 2007 11:07:16 +0000 (19:07 +0800)]
[CRYPTO] aes-i586: Remove setkey

The setkey() function can be shared with the generic algorithm.

Signed-off-by: Sebastian Siewior <sebastian@breakpoint.cc>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] ctr: Remove default M
Sebastian Siewior [Thu, 8 Nov 2007 13:27:05 +0000 (21:27 +0800)]
[CRYPTO] ctr: Remove default M

NO other block mode is M by default.

Signed-off-by: Sebastian Siewior <sebastian@breakpoint.cc>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] aes-x86-64: Remove setkey
Sebastian Siewior [Thu, 8 Nov 2007 13:25:04 +0000 (21:25 +0800)]
[CRYPTO] aes-x86-64: Remove setkey

The setkey() function can be shared with the generic algorithm.

Signed-off-by: Sebastian Siewior <sebastian@breakpoint.cc>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] aes-generic: Make key generation exportable
Sebastian Siewior [Thu, 8 Nov 2007 13:20:30 +0000 (21:20 +0800)]
[CRYPTO] aes-generic: Make key generation exportable

This patch exports four tables and the set_key() routine. This ressources
can be shared by other AES implementations (aes-x86_64 for instance).
The decryption key has been turned around (deckey[0] is the first piece
of the key instead of deckey[keylen+20]). The encrypt/decrypt functions
are looking now identical (except they are using different tables and
key).

Signed-off-by: Sebastian Siewior <sebastian@breakpoint.cc>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] aes-generic: Coding style cleanup
Sebastian Siewior [Thu, 8 Nov 2007 12:39:26 +0000 (20:39 +0800)]
[CRYPTO] aes-generic: Coding style cleanup

Signed-off-by: Sebastian Siewior <sebastian@breakpoint.cc>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] ctr: Add countersize
Joy Latten [Wed, 7 Nov 2007 14:59:47 +0000 (22:59 +0800)]
[CRYPTO] ctr: Add countersize

This patch adds countersize to CTR mode.
The template is now ctr(algo,noncesize,ivsize,countersize).

For example, ctr(aes,4,8,4) indicates the counterblock
will be composed of a salt/nonce that is 4 bytes, an iv
that is 8 bytes and the counter is 4 bytes.

When noncesize + ivsize < blocksize, CTR initializes the
last block - ivsize - noncesize portion of the block to
zero.  Otherwise the counter block is composed of the IV
(and nonce if necessary).

If noncesize + ivsize == blocksize, then this indicates that
user is passing in entire counterblock. Thus countersize
indicates the amount of bytes in counterblock to use as
the counter for incrementing. CTR will increment counter
portion by 1, and begin encryption with that value.

Note that CTR assumes the counter portion of the block that
will be incremented is stored in big endian.

Signed-off-by: Joy Latten <latten@austin.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] camellia: De-unrolling
Denys Vlasenko [Tue, 6 Nov 2007 14:15:19 +0000 (22:15 +0800)]
[CRYPTO] camellia: De-unrolling

Move huge unrolled pieces of code (3 screenfuls) at the end of
128/256 key setup routines into common camellia_setup_tail(),
convert it to loop there.
Loop is still unrolled six times, so performance hit is very small,
code size win is big.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Acked-by: Noriaki TAKAMIYA <takamiya@po.ntts.co.jp>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] camellia: Code cleanup
Denys Vlasenko [Tue, 6 Nov 2007 14:13:40 +0000 (22:13 +0800)]
[CRYPTO] camellia: Code cleanup

Optimize GETU32 to use 4-byte memcpy (modern gcc will convert
such memcpy to single move instruction on i386).
Original GETU32 did four byte fetches, and shifted/XORed those.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Acked-by: Noriaki TAKAMIYA <takamiya@po.ntts.co.jp>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] camellia: Code cleanup
Denys Vlasenko [Tue, 6 Nov 2007 14:05:36 +0000 (22:05 +0800)]
[CRYPTO] camellia: Code cleanup

Rename some macros to shorter names: CAMELLIA_RR8 -> ROR8,
making it easier to understand that it is just a right rotation,
nothing camellia-specific in it.
CAMELLIA_SUBKEY_L() -> SUBKEY_L() - just shorter.

Move be32 <-> cpu conversions out of en/decrypt128/256 and into
camellia_en/decrypt - no reason to have that code duplicated twice.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Acked-by: Noriaki TAKAMIYA <takamiya@po.ntts.co.jp>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] camellia: Code cleanup
Denys Vlasenko [Tue, 6 Nov 2007 14:01:20 +0000 (22:01 +0800)]
[CRYPTO] camellia: Code cleanup

Move code blocks around so that related pieces are closer together:
e.g. CAMELLIA_ROUNDSM macro does not need to be separated
from the rest of the code by huge array of constants.

Remove unused macros (COPY4WORD, SWAP4WORD, XOR4WORD[2])

Drop SUBL(), SUBR() macros which only obscure things.
Same for CAMELLIA_SP1110() macro and KEY_TABLE_TYPE typedef.

Remove useless comments:
/* encryption */ -- well it's obvious enough already!
void camellia_encrypt128(...)

Combine swap with copying at the beginning/end of encrypt/decrypt.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Acked-by: Noriaki TAKAMIYA <takamiya@po.ntts.co.jp>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] twofish: Do not unroll big stuff in twofish key setup
Denys Vlasenko [Fri, 26 Oct 2007 08:22:57 +0000 (16:22 +0800)]
[CRYPTO] twofish: Do not unroll big stuff in twofish key setup

Currently twofish cipher key setup code
has unrolled loops - approximately 70-100
instructions are repeated 40 times.

As a result, twofish module is the biggest module
in crypto/*.

Unrolling produces x2.5 more code (+18k on i386), and speeds up key
setup by 7%:

unrolled: twofish_setkey/sec: 41128
    loop: twofish_setkey/sec: 38148
CALC_K256: ~100 insns each
CALC_K192: ~90 insns
   CALC_K: ~70 insns

Attached patch removes this unrolling.

$ size */twofish_common.o
   text    data     bss     dec     hex filename
  37920       0       0   37920    9420 crypto.org/twofish_common.o
  13209       0       0   13209    3399 crypto/twofish_common.o

Run tested (modprobe tcrypt reports ok). Please apply.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] geode: move defines into a headerfile
Sebastian Siewior [Sun, 21 Oct 2007 08:21:25 +0000 (16:21 +0800)]
[CRYPTO] geode: move defines into a headerfile

This patch moves macros in geode-aes.c into geode-aes.h.

Signed-off-by: Sebastian Siewior <sebastian@breakpoint.cc>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] geode: relax in busy loop and care about return value
Sebastian Siewior [Sun, 21 Oct 2007 08:18:12 +0000 (16:18 +0800)]
[CRYPTO] geode: relax in busy loop and care about return value

The code waits in a busy loop until the hardware finishes the encryption
or decryption process. This wants a cpu_relax() :)
The busy loop finishes either if the encryption is done or if the counter
is zero. If the latter is true than the hardware failed. Since this
should not happen, leave sith a BUG().

Signed-off-by: Sebastian Siewior <sebastian@breakpoint.cc>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] geode: use consistent IV copy
Sebastian Siewior [Sun, 21 Oct 2007 08:04:23 +0000 (16:04 +0800)]
[CRYPTO] geode: use consistent IV copy

It is enough if the IV is copied before and after the while loop.
With DM-Crypt is seems not be required to save the IV after encrytion
because a new one is used in the request (dunno about other users).
It is not save to load the IV within while loop and not save afterwards
because we mill end up with the wrong IV if the request goes consists
of more than one page.

Signed-off-by: Sebastian Siewior <sebastian@breakpoint.cc>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] aes: Move common defines into a header file
Sebastian Siewior [Wed, 17 Oct 2007 15:18:57 +0000 (23:18 +0800)]
[CRYPTO] aes: Move common defines into a header file

This three defines are used in all AES related hardware.

Signed-off-by: Sebastian Siewior <sebastian@breakpoint.cc>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] geode: remove alias
Sebastian Siewior [Mon, 15 Oct 2007 14:09:47 +0000 (22:09 +0800)]
[CRYPTO] geode: remove alias

alias isn't required because the module provides PCI ids.

Signed-off-by: Sebastian Siewior <sebastian@breakpoint.cc>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] hifn_795x: Detect weak keys
Evgeniy Polyakov [Thu, 11 Oct 2007 11:58:16 +0000 (19:58 +0800)]
[CRYPTO] hifn_795x: Detect weak keys

HIFN driver update to use DES weak key checks (exported in this patch).

Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] des: Create header file for common macros
Evgeniy Polyakov [Thu, 11 Oct 2007 11:48:58 +0000 (19:48 +0800)]
[CRYPTO] des: Create header file for common macros

This patch creates include/crypto/des.h for common macros shared between
DES implementations.

Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] hifn_795x: HIFN 795x driver
Evgeniy Polyakov [Fri, 26 Oct 2007 13:31:14 +0000 (21:31 +0800)]
[CRYPTO] hifn_795x: HIFN 795x driver

This is a driver for HIFN 795x crypto accelerator chips.

It passed all tests for AES, DES and DES3_EDE except weak test for DES,
since hardware can not determine weak keys.

Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] ctr: Add CTR (Counter) block cipher mode
Joy Latten [Tue, 23 Oct 2007 00:50:32 +0000 (08:50 +0800)]
[CRYPTO] ctr: Add CTR (Counter) block cipher mode

This patch implements CTR mode for IPsec.
It is based off of RFC 3686.

Please note:
1. CTR turns a block cipher into a stream cipher.
Encryption is done in blocks, however the last block
may be a partial block.

A "counter block" is encrypted, creating a keystream
that is xor'ed with the plaintext. The counter portion
of the counter block is incremented after each block
of plaintext is encrypted.
Decryption is performed in same manner.

2. The CTR counterblock is composed of,
        nonce + IV + counter

The size of the counterblock is equivalent to the
blocksize of the cipher.
        sizeof(nonce) + sizeof(IV) + sizeof(counter) = blocksize

The CTR template requires the name of the cipher
algorithm, the sizeof the nonce, and the sizeof the iv.
        ctr(cipher,sizeof_nonce,sizeof_iv)

So for example,
        ctr(aes,4,8)
specifies the counterblock will be composed of 4 bytes
from a nonce, 8 bytes from the iv, and 4 bytes for counter
since aes has a blocksize of 16 bytes.

3. The counter portion of the counter block is stored
in big endian for conformance to rfc 3686.

Signed-off-by: Joy Latten <latten@austin.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] padlock: Fix alignment fault in aes_crypt_copy
Herbert Xu [Thu, 10 Jan 2008 21:09:35 +0000 (08:09 +1100)]
[CRYPTO] padlock: Fix alignment fault in aes_crypt_copy

The previous patch fixed spurious read faults from occuring by copying
the data if we happen to have a single block at the end of a page.  It
appears that gcc cannot guarantee 16-byte alignment in the kernel with
__attribute__.  The following report from Torben Viets shows a buffer
that's only 8-byte aligned:

> eneral protection fault: 0000 [#1]
> Modules linked in: xt_TCPMSS xt_tcpmss iptable_mangle ipt_MASQUERADE
> xt_tcpudp xt_mark xt_state iptable_nat nf_nat nf_conntrack_ipv4
> iptable_filter ip_tables x_tables pppoe pppox af_packet ppp_generic slhc
> aes_i586
> CPU:    0
> EIP:    0060:[<c035b828>]    Not tainted VLI
> EFLAGS: 00010292   (2.6.23.12 #7)
> EIP is at aes_crypt_copy+0x28/0x40
> eax: f7639ff0   ebx: f6c24050   ecx: 00000001   edx: f6c24030
> esi: f7e89dc8   edi: f7639ff0   ebp: 00010000   esp: f7e89dc8

Since the hardware must have 16-byte alignment, the following patch fixes
this by open coding the alignment adjustment.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] padlock: Fix spurious ECB page fault
Herbert Xu [Fri, 28 Dec 2007 00:05:46 +0000 (11:05 +1100)]
[CRYPTO] padlock: Fix spurious ECB page fault

The xcryptecb instruction always processes an even number of blocks so
we need to ensure th existence of an extra block if we have to process
an odd number of blocks.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] api: Fix potential race in crypto_remove_spawn
Herbert Xu [Sat, 17 Nov 2007 14:09:38 +0000 (22:09 +0800)]
[CRYPTO] api: Fix potential race in crypto_remove_spawn

As it is crypto_remove_spawn may try to unregister an instance which is
yet to be registered.  This patch fixes this by checking whether the
instance has been registered before attempting to remove it.

It also removes a bogus cra_destroy check in crypto_register_instance as
1) it's outside the mutex;
2) we have a check in __crypto_register_alg already.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years ago[CRYPTO] authenc: Move initialisations up to shut up gcc
Herbert Xu [Thu, 11 Oct 2007 08:45:17 +0000 (16:45 +0800)]
[CRYPTO] authenc: Move initialisations up to shut up gcc

It seems that newer versions of gcc have regressed in their abilities to
analyse initialisations.  This patch moves the initialisations up to avoid
the warnings.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
16 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux...
Linus Torvalds [Sat, 17 Nov 2007 16:36:10 +0000 (08:36 -0800)]
Merge branch 'master' of git://git./linux/kernel/git/x86/linux-2.6-x86

* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86:
  x86: simplify "make ARCH=x86" and fix kconfig all.config
  x86: reboot fixup for wrap2c board
  x86: check boundary in count setup resource
  x86: fix reboot with no keyboard attached
  x86: add hpet sanity checks
  x86: on x86_64, correct reading of PC RTC when update in progress in time_64.c
  x86: fix freeze in x86_64 RTC update code in time_64.c
  ntp: fix typo that makes sync_cmos_clock erratic
  Remove x86 merge artifact from top Makefile
  x86: fixup cpu_info array conversion
  x86: show cpuinfo only for online CPUs
  x86: fix cpu-hotplug regression
  x86: ignore the sys_getcpu() tcache parameter
  x86: voyager use correct header file name
  x86: fix smp init sections
  x86: fix voyager_cat_init section
  x86: fix bogus memcpy in es7000_check_dsdt()

16 years agox86: simplify "make ARCH=x86" and fix kconfig all.config
Sam Ravnborg [Sat, 17 Nov 2007 14:37:31 +0000 (15:37 +0100)]
x86: simplify "make ARCH=x86" and fix kconfig all.config

Simplify "make ARCH=x86" and fix kconfig so we again can set 64BIT in
all.config.

For a fix the diffstat is nice:
 6 files changed, 3 insertions(+), 36 deletions(-)

The patch reverts these commits:
 - 0f855aa64b3f63d35a891510cf7db932a435c116 ("kconfig: add helper to set
   config symbol from environment variable")
 - 2a113281f5cd2febbab21a93c8943f8d3eece4d3 ("kconfig: use $K64BIT to
   set 64BIT with all*config targets")

Roman Zippel pointed out that kconfig supported string compares so
the additional complexity introduced by the above two patches were
not needed.

With this patch we have following behaviour:

  # make {allno,allyes,allmod,rand}config [ARCH=...]
  option \ host arch      | 32bit         | 64bit
  =====================================================
  ./.                     | 32bit         | 64bit
  ARCH=x86                | 32bit         | 32bit
  ARCH=i386               | 32bit         | 32bit
  ARCH=x86_64             | 64bit         | 64bit

The general rule are that ARCH= and native architecture takes
precedence over the configuration.

So make ARCH=i386 [whatever] will always build a 32-bit kernel
no matter what the configuration says.  The configuration will
be updated to 32-bit if it was configured to 64-bit and the
other way around.

This behaviour is consistent with previous behaviour so no
suprises here.

make ARCH=x86 will per default result in a 32-bit kernel but as
the only ARCH= value x86 allow the user to select between 32-bit
and 64-bit using menuconfig.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: Andreas Herrmann <aherrman@arcor.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agox86: simplify "make ARCH=x86" and fix kconfig all.config
Sam Ravnborg [Sat, 17 Nov 2007 14:37:31 +0000 (15:37 +0100)]
x86: simplify "make ARCH=x86" and fix kconfig all.config

Simplify "make ARCH=x86" and fix kconfig so we again
can set 64BIT in all.config.

For a fix the diffstat is nice:
 6 files changed, 3 insertions(+), 36 deletions(-)

The patch reverts these commits:
0f855aa64b3f63d35a891510cf7db932a435c116
-> kconfig: add helper to set config symbol from environment variable

2a113281f5cd2febbab21a93c8943f8d3eece4d3
-> kconfig: use $K64BIT to set 64BIT with all*config targets

Roman Zippel pointed out that kconfig supported string
compares so the additional complexity introduced by the
above two patches were not needed.

With this patch we have following behaviour:

# make {allno,allyes,allmod,rand}config [ARCH=...]
option \ host arch      | 32bit         | 64bit
=====================================================
./.                     | 32bit         | 64bit
ARCH=x86                | 32bit         | 32bit
ARCH=i386               | 32bit         | 32bit
ARCH=x86_64             | 64bit         | 64bit

The general rule are that ARCH= and native architecture
takes precedence over the configuration.
So make ARCH=i386 [whatever] will always build a 32-bit
kernel no matter what the configuration says.
The configuration will be updated to 32-bit if it was
configured to 64-bit and the other way around.

This behaviour is consistent with previous behaviour so
no suprises here.

make ARCH=x86 will per default result in a 32-bit kernel
but as the only ARCH= value x86 allow the user to select
between 32-bit and 64-bit using menuconfig.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: Andreas Herrmann <aherrman@arcor.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
16 years agox86: reboot fixup for wrap2c board
Denys [Sat, 17 Nov 2007 15:27:02 +0000 (16:27 +0100)]
x86: reboot fixup for wrap2c board

Needed to make the wireless board, WRAP2C reboot.

Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
16 years agox86: check boundary in count setup resource
Yinghai Lu [Sat, 17 Nov 2007 15:27:01 +0000 (16:27 +0100)]
x86: check boundary in count setup resource

need to check info->res_num less than PCI_BUS_NUM_RESOURCES, so
info->bus->resource[info->res_num] = res will not beyond of bus resource
array when acpi returns too many resource entries.

Signed-off-by: Yinghai Lu <yinghai.lu@sun.com>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Cc: Gary Hade <gary.hade@us.ibm.com>
Cc: Len Brown <lenb@kernel.org>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
16 years agox86: fix reboot with no keyboard attached
Truxton Fulton [Sat, 17 Nov 2007 15:27:01 +0000 (16:27 +0100)]
x86: fix reboot with no keyboard attached

Attempt to fix http://bugzilla.kernel.org/show_bug.cgi?id=8378

Hiroto Shibuya wrote to tell me that he has a VIA EPIA-EK10000 which
suffers from the reboot problem when no keyboard is attached.  My first
patch works for him:

  http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=59f4e7d572980a521b7bdba74ab71b21f5995538

But the latest patch does not work for him :

  http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=8b93789808756bcc1e5c90c99f1b1ef52f839a51

We found that it was necessary to also set the "disable keyboard" flag in
the command byte, as the first patch was doing.  The second patch tries to
minimally modify the command byte, but it is not enough.

Please consider this simple one-line patch to help people with low end VIA
motherboards reboot when no keyboard is attached.  Hiroto Shibuya has
verified that this works for him (as I no longer have an afflicted
machine).

Additional discussion:

Note that original patch from Truxton DOES
disable keyboard and this has been in main tree since 2.6.14, thus it must have
quite a bit of air time already.

http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.14.y.git;a=commit;h=59f4e7d572980a521b7bdba74ab71b21f5995538

Note that he only mention "System flag" in the description and comment, but
in the code, "disable keyboard" flag is set.

  outb(0x14, 0x60);       /* set "System flag" */

In 2.6.23, he made a change to read the current byte and then mask the flags,
but along this change,  he only set the "System flag" and dropped the setting
of "disable keyboard" flag.

http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.23.y.git;a=commit;h=8b93789808756bcc1e5c90c99f1b1ef52f839a51

   outb(cmd | 0x04, 0x60); /* set "System flag" */

So my request is to restore the setting of disable keyboard flag which has been
there since 2.6.14 but disappeared in 2.6.23.

Cc: Lee Garrett <lee-in-berlin@web.de>
Cc: "Hiroto Shibuya" <hiroto.shibuya@gmail.com>
Cc: Natalie Protasevich <protasnb@gmail.com>
Cc: Dmitry Torokhov <dtor@mail.ru>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Aristeu Rozanski <aris@ruivo.org>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
16 years agox86: add hpet sanity checks
Thomas Gleixner [Fri, 16 Nov 2007 02:41:50 +0000 (21:41 -0500)]
x86: add hpet sanity checks

Some BIOSes advertise HPET at 0x0. We really do no want to
allocate a resource there. Check for it and leave early.

Other BIOSes tell us the HPET is at 0xfed0000000000000
instead of 0xfed00000. Add a check and fix it up with a warning
on user request.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
16 years agox86: on x86_64, correct reading of PC RTC when update in progress in time_64.c
David P. Reed [Thu, 15 Nov 2007 01:14:50 +0000 (20:14 -0500)]
x86: on x86_64, correct reading of PC RTC when update in progress in time_64.c

Correct potentially unstable PC RTC time register reading in time_64.c

Stop the use of an incorrect technique for reading the standard PC RTC
timer, which is documented to "disconnect" time registers from the bus
while updates are in progress.  The use of UIP flag while interrupts
are disabled to protect a 244 microsecond window is one of the
Motorola spec sheet's documented ways to read the RTC time registers
reliably.

tglx: removed locking changes from original patch, as they gain nothing
(read_persistent_clock is only called during boot, suspend, resume - so
no hot path affected) and conflict with the paravirt locking scheme
(see 32bit code), which we do not want to complicate for no benefit.

Signed-off-by: David P. Reed <dpreed@reed.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
16 years agox86: fix freeze in x86_64 RTC update code in time_64.c
David P. Reed [Wed, 14 Nov 2007 22:47:35 +0000 (17:47 -0500)]
x86: fix freeze in x86_64 RTC update code in time_64.c

Fix hard freeze on x86_64 when the ntpd service calls
update_persistent_clock()

A repeatable but randomly timed freeze has been happening in Fedora 6
and 7 for the last year, whenever I run the ntpd service on my AMD64x2
HP Pavilion dv9000z laptop.  This freeze is due to the use of
spin_lock(&rtc_lock) under the assumption (per a bad comment) that
set_rtc_mmss is called only with interrupts disabled.  The call from
ntp.c to update_persistent_clock is made with interrupts enabled.

Signed-off-by: David P. Reed <dpreed@reed.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
16 years agontp: fix typo that makes sync_cmos_clock erratic
David P. Reed [Wed, 14 Nov 2007 22:49:21 +0000 (17:49 -0500)]
ntp: fix typo that makes sync_cmos_clock erratic

Fix a typo in ntp.c that has caused updating of the persistent (RTC)
clock when synced to NTP to behave erratically.

When debugging a freeze that arises on my AMD64 machines when I
run the ntpd service, I added a number of printk's to monitor the
sync_cmos_clock procedure.  I discovered that it was not syncing to
cmos RTC every 11 minutes as documented, but instead would keep trying
every second for hours at a time.  The reason turned out to be a typo
in sync_cmos_clock, where it attempts to ensure that
update_persistent_clock is called very close to 500 msec. after a 1
second boundary (required by the PC RTC's spec). That typo referred to
"xtime" in one spot, rather than "now", which is derived from "xtime"
but not equal to it.  This makes the test erratic, creating a
"coin-flip" that decides when update_persistent_clock is called - when
it is called, which is rarely, it may be at any time during the one
second period, rather than close to 500 msec, so the value written is
needlessly incorrect, too.

Signed-off-by: David P. Reed
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
16 years agoRemove x86 merge artifact from top Makefile
Thomas Gleixner [Thu, 15 Nov 2007 06:11:12 +0000 (07:11 +0100)]
Remove x86 merge artifact from top Makefile

The x86 merge modified the tags target to handle the two separate
source directories. Remove it now that i386/x86_64 are gone completely.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
16 years agox86: fixup cpu_info array conversion
Thomas Gleixner [Sat, 17 Nov 2007 12:18:42 +0000 (13:18 +0100)]
x86: fixup cpu_info array conversion

92cb7612aee39642d109b8d935ad265e602c0563 sets cpu_info->cpu_index to zero
for no reason. Referencing cpu_info->cpu_index now points always to CPU#0,
which is apparently not what we want.

Remove it.

Spotted-by: Zou Nan hai <nanhai.zou@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
16 years agox86: show cpuinfo only for online CPUs
Andreas Herrmann [Thu, 1 Nov 2007 18:32:17 +0000 (19:32 +0100)]
x86: show cpuinfo only for online CPUs

Fix regressions introduced with 92cb7612aee39642d109b8d935ad265e602c0563.

It can happen that cpuinfo is displayed for CPUs that are not online or
even worse for CPUs not present at all. As an example, following was
shown for a "second" CPU of a single core K8 variant:

    processor       : 0
    vendor_id       : unknown
    cpu family      : 0
    model           : 0
    model name      : unknown
    stepping        : 0
    cache size      : 0 KB
    fpu             : yes
    fpu_exception   : yes
    cpuid level     : 0
    wp              : yes
    flags           :
    bogomips        : 0.00
    clflush size    : 0
    cache_alignment : 0
    address sizes   : 0 bits physical, 0 bits virtual
    power management:

Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
16 years agox86: fix cpu-hotplug regression
Andreas Herrmann [Wed, 7 Nov 2007 01:12:58 +0000 (02:12 +0100)]
x86: fix cpu-hotplug regression

Commit d435d862baca3e25e5eec236762a43251b1e7ffc
("cpu hotplug: mce: fix cpu hotplug error handling")
changed the error handling in mce_cpu_callback.

In cases where not all CPUs are brought up during
boot (e.g. using maxcpus and additional_cpus parameters)
mce_cpu_callback now returns NOTFIY_BAD because
for such CPUs cpu_data is not completely filled when
the notifier is called. Thus mce_create_device fails right
at its beginning:

        if (!mce_available(&cpu_data[cpu]))
                return -EIO;

As a quick fix I suggest to check boot_cpu_data for MCE.

To reproduce this regression:

(1) boot with maxcpus=2 addtional_cpus=2 on a 4 CPU x86-64 system
(2) # echo 1 >/sys/devices/system/cpu/cpu2/online
  -bash: echo: write error: Invalid argument

dmesg shows:

_cpu_up: attempt to bring up CPU 2 failed

Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
16 years agox86: ignore the sys_getcpu() tcache parameter
Ingo Molnar [Wed, 7 Nov 2007 17:37:48 +0000 (18:37 +0100)]
x86: ignore the sys_getcpu() tcache parameter

dont use the vgetcpu tcache - it's causing problems with tasks
migrating, they'll see the old cache up to a jiffy after the
migration, further increasing the costs of the migration.

In the worst case they see a complete bogus information from
the tcache, when a sys_getcpu() call "invalidated" the cache
info by incrementing the jiffies _and_ the cpuid info in the
cache and the following vdso_getcpu() call happens after
vdso_jiffies have been incremented.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Ulrich Drepper <drepper@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
16 years agox86: voyager use correct header file name
Randy Dunlap [Mon, 12 Nov 2007 05:06:02 +0000 (21:06 -0800)]
x86: voyager use correct header file name

Fix header file name for Voyager build.

In file included from arch/x86/kernel/setup_32.c:61:
include/asm-x86/mach-voyager/setup_arch.h:2:26: error: asm/setup_32.h: No such file or directory
make[1]: *** [arch/x86/kernel/setup_32.o] Error 1

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
16 years agox86: fix smp init sections
Randy Dunlap [Mon, 12 Nov 2007 05:06:45 +0000 (21:06 -0800)]
x86: fix smp init sections

Fix Voyager section mismatch due to using __devinit instead of __cpuinit.

WARNING: vmlinux.o(.text+0xd943): Section mismatch: reference to .init.text:init_gdt (between 'voyager_smp_prepare_boot_cpu' and 'smp_vic_cmn_interrupt')

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
16 years agox86: fix voyager_cat_init section
Randy Dunlap [Mon, 12 Nov 2007 05:06:23 +0000 (21:06 -0800)]
x86: fix voyager_cat_init section

Fix Voyager section mismatches:  voyager_cat_init() should be __init.

WARNING: vmlinux.o(.text+0xee83): Section mismatch: reference to .init.data:eprom_buf (between 'voyager_cat_init' and 'aes_enc_blk')
WARNING: vmlinux.o(.text+0xeea6): Section mismatch: reference to .init.data: (between 'voyager_cat_init' and 'aes_enc_blk')
WARNING: vmlinux.o(.text+0xeeac): Section mismatch: reference to .init.data: (between 'voyager_cat_init' and 'aes_enc_blk')
WARNING: vmlinux.o(.text+0xeeb2): Section mismatch: reference to .init.data: (between 'voyager_cat_init' and 'aes_enc_blk')
WARNING: vmlinux.o(.text+0xef4c): Section mismatch: reference to .init.data: (between 'voyager_cat_init' and 'aes_enc_blk')
WARNING: vmlinux.o(.text+0xef56): Section mismatch: reference to .init.data: (between 'voyager_cat_init' and 'aes_enc_blk')
WARNING: vmlinux.o(.text+0xf10f): Section mismatch: reference to .init.data:eprom_buf (between 'voyager_cat_init' and 'aes_enc_blk')
WARNING: vmlinux.o(.text+0xf13b): Section mismatch: reference to .init.data: (between 'voyager_cat_init' and 'aes_enc_blk')
WARNING: vmlinux.o(.text+0xf14b): Section mismatch: reference to .init.data: (between 'voyager_cat_init' and 'aes_enc_blk')
WARNING: vmlinux.o(.text+0xf159): Section mismatch: reference to .init.data: (between 'voyager_cat_init' and 'aes_enc_blk')
WARNING: vmlinux.o(.text+0xf1b1): Section mismatch: reference to .init.data:eprom_buf (between 'voyager_cat_init' and 'aes_enc_blk')
WARNING: vmlinux.o(.text+0xf1bb): Section mismatch: reference to .init.data: (between 'voyager_cat_init' and 'aes_enc_blk')
WARNING: vmlinux.o(.text+0xf1c1): Section mismatch: reference to .init.data:eprom_buf (between 'voyager_cat_init' and 'aes_enc_blk')
WARNING: vmlinux.o(.text+0xf1c7): Section mismatch: reference to .init.data:eprom_buf (between 'voyager_cat_init' and 'aes_enc_blk')
WARNING: vmlinux.o(.text+0xf1e6): Section mismatch: reference to .init.data: (between 'voyager_cat_init' and 'aes_enc_blk')

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
16 years agox86: fix bogus memcpy in es7000_check_dsdt()
Thomas Gleixner [Wed, 14 Nov 2007 12:20:48 +0000 (13:20 +0100)]
x86: fix bogus memcpy in es7000_check_dsdt()

es7000_check_dst() contains a memcpy from 0, which probably should have been
a memset. Remove it and check the retunr value from acpi_get_table_header.

Noticed by: Joe Perches <joe@perches.com>

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
16 years agoLinux 2.6.24-rc3
Linus Torvalds [Sat, 17 Nov 2007 05:16:36 +0000 (21:16 -0800)]
Linux 2.6.24-rc3

16 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris...
Linus Torvalds [Sat, 17 Nov 2007 02:32:28 +0000 (18:32 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jmorris/selinux-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/selinux-2.6:
  SELinux: return EOPNOTSUPP not ENOTSUPP