Commit graph

46 commits

Author SHA1 Message Date
Jan Glauber
5265eeb2b0 [CRYPTO] sha: Add header file for SHA definitions
There are currently several SHA implementations that all define their own
initialization vectors and size values. Since this values are idential
move them to a header file under include/crypto.

Signed-off-by: Jan Glauber <jang@de.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2007-10-10 16:55:50 -07:00
Sebastian Siewior
ad5d27899f [CRYPTO] sha: Load the SHA[1|256] module by an alias
Loading the crypto algorithm by the alias instead of by module directly
has the advantage that all possible implementations of this algorithm
are loaded automatically and the crypto API can choose the best one
depending on its priority.

Additionally it ensures that the generic implementation as well as the
HW driver (if available) is loaded in case the HW driver needs the
generic version as fallback in corner cases.

Also remove the probe for sha1 in padlock's init code.

Quote from Herbert:
  The probe is actually pointless since we can always probe when
  the algorithm is actually used which does not lead to dead-locks
  like this.

Signed-off-by: Sebastian Siewior <sebastian@breakpoint.cc>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2007-10-10 16:55:50 -07:00
Sebastian Siewior
f8246af005 [CRYPTO] aes: Rename aes to aes-generic
Loading the crypto algorithm by the alias instead of by module directly
has the advantage that all possible implementations of this algorithm
are loaded automatically and the crypto API can choose the best one
depending on its priority.

Additionally it ensures that the generic implementation as well as the
HW driver (if available) is loaded in case the HW driver needs the
generic version as fallback in corner cases.

Signed-off-by: Sebastian Siewior <sebastian@breakpoint.cc>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2007-10-10 16:55:49 -07:00
Adrian Bunk
44db25ca12 [CRYPTO] drivers/Kconfig: Remove "default m"s
Hardware drivers shouldn't default to m.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2007-10-10 16:55:37 -07:00
Jan Engelhardt
06bfb7eb15 Add some help texts to recently-introduced kconfig items
Signed-off-by: Jan Engelhardt <jengelh@gmx.de>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> (edited MACINTOSH_DRIVERS per Geert Uytterhoeven's remark)
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-08-18 09:52:50 -07:00
Jan Engelhardt
b511431d85 Use menuconfig objects: crypto hw
Use menuconfigs instead of menus, so the whole menu can be disabled at once
instead of going through all options.

Signed-off-by: Jan Engelhardt <jengelh@gmx.de>
Cc: Michael Buesch <mb@bu3sch.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-16 09:05:40 -07:00
Jordan Crouse
761e784673 [CRYPTO] geode: Fix in-place operations and set key
Allow in-place crypto operations.  Also remove the coherent user flag
(we use it automagically now), and by default use the user written
key rather then the HW hidden key - this makes crypto just work without
any special considerations, and thats OK, since its our only usage
model.

Signed-off-by: Jordan Crouse <jordan.crouse@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2007-05-24 21:23:24 +10:00
Herbert Xu
d158325e40 [CRYPTO] padlock: Make CRYPTO_DEV_PADLOCK a tristate again
Turning it into a boolean was unnecessary and caused ALGAPI to be
pinned down as a boolean to.  This patch makes it a tristate again.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2007-05-18 13:17:22 +10:00
Martin Schwidefsky
61d48c2c31 [S390] Kconfig: use common Kconfig files for s390.
Disband drivers/s390/Kconfig, use the common Kconfig files. The s390
specific config options from drivers/s390/Kconfig are moved to the
respective common Kconfig files.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-05-10 15:46:08 +02:00
David Sterba
3dde6ad8fc Fix trivial typos in Kconfig* files
Fix several typos in help text in Kconfig* files.

Signed-off-by: David Sterba <dave@jikos.cz>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2007-05-09 07:12:20 +02:00
Simon Arlott
f6259deacf [CRYPTO] padlock: Remove pointless padlock module
When this is compiled in it is run too early to do anything useful:
[    6.052000] padlock: No VIA PadLock drivers have been loaded.
[    6.052000] padlock: Using VIA PadLock ACE for AES algorithm.
[    6.052000] padlock: Using VIA PadLock ACE for SHA1/SHA256 algorithms.

When it's a module it isn't doing anything special, the same functionality 
can be provided in userspace by "probeall padlock padlock-aes padlock-sha" 
in modules.conf if it is required.

Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Cc: Michal Ludvig <michal@logix.cz>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2007-05-02 22:08:26 +10:00
Alexey Dobriyan
5efee174f8 [PATCH] geode-aes: use unsigned long for spin_lock_irqsave
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-06 09:30:25 -08:00
Tim Schmielau
cd354f1ae7 [PATCH] remove many unneeded #includes of sched.h
After Al Viro (finally) succeeded in removing the sched.h #include in module.h
recently, it makes sense again to remove other superfluous sched.h includes.
There are quite a lot of files which include it but don't actually need
anything defined in there.  Presumably these includes were once needed for
macros that used to live in sched.h, but moved to other header files in the
course of cleaning it up.

To ease the pain, this time I did not fiddle with any header files and only
removed #includes from .c-files, which tend to cause less trouble.

Compile tested against 2.6.20-rc2 and 2.6.20-rc2-mm2 (with offsets) on alpha,
arm, i386, ia64, mips, powerpc, and x86_64 with allnoconfig, defconfig,
allmodconfig, and allyesconfig as well as a few randconfigs on x86_64 and all
configs in arch/arm/configs on arm.  I also checked that no new warnings were
introduced by the patch (actually, some warnings are removed that were emitted
by unnecessarily included header files).

Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-14 08:09:54 -08:00
David S. Miller
9783e1df7a Merge branch 'HEAD' of master.kernel.org:/pub/scm/linux/kernel/git/herbert/crypto-2.6
Conflicts:

	crypto/Kconfig
2007-02-08 15:25:18 -08:00
Richard Knutsson
09cb914f09 [CRYPTO] geode: Convert pci_module_init() to pci_register_driver()
Replace uses of the obsolete pci_module_init function.

Signed-off-by: Richard Knutsson <ricknu-0@student.ltu.se>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2007-02-07 09:21:02 +11:00
Jan Glauber
1b27829489 [S390] Support for s390 Pseudo Random Number Generator
Starting with the z9 the CPU Cryptographic Assist Facility comes with
an integrated Pseudo Random Number Generator. The generator creates
random numbers by an algorithm similar to the ANSI X9.17 standard.
The pseudo-random numbers can be accessed via a character device driver
node called /dev/prandom. Similar to /dev/urandom any amount of bytes
can be read from the device without blocking.

Signed-off-by: Jan Glauber <jan.glauber@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-02-05 21:18:22 +01:00
Randy Dunlap
9080d0ae0f [PATCH] geode crypto is PCI device
This driver seems to be for a PCI device.

drivers/crypto/geode-aes.c:384: warning: implicit declaration of function 'pci_release_regions'
drivers/crypto/geode-aes.c:397: warning: implicit declaration of function 'pci_request_regions'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Jordan Crouse <jordan.crouse@amd.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-10 09:55:40 -08:00
Adrian Bunk
ab7827059a [CRYPTO] geode: Make needlessly global geode_aes_crypt() static
On Tue, Nov 14, 2006 at 01:41:25AM -0800, Andrew Morton wrote:
>...
> Changes since 2.6.19-rc5-mm2:
>...
>  git-cryptodev.patch
>...
>  git trees
>...

This patch makes the needlessly global geode_aes_crypt() static.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2006-12-06 18:38:53 -08:00
Jordan Crouse
9fe757b0cf [PATCH] crypto: Add support for the Geode LX AES hardware
Add a driver to support the AES hardware on the Geode LX processor.

Signed-off-by: Jordan Crouse <jordan.crouse@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2006-12-06 18:38:46 -08:00
Herbert Xu
6010439f47 [CRYPTO] padlock: Convert padlock-sha to use crypto_hash
This patch converts padlock-sha to use crypto_hash for its fallback.
It also changes the fallback selection to use selection by type instead
of name.  This is done through the new CRYPTO_ALG_NEED_FALLBACK bit,
which is set if and only if an algorithm needs a fallback of the same
type.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2006-09-21 11:46:22 +10:00
Herbert Xu
e4d5b79c66 [CRYPTO] users: Use crypto_comp and crypto_has_*
This patch converts all users to use the new crypto_comp type and the
crypto_has_* functions.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2006-09-21 11:46:22 +10:00
Herbert Xu
efcf8023e2 [CRYPTO] drivers: Remove obsolete block cipher operations
This patch removes obsolete block operations of the simple cipher type
from drivers.  These were preserved so that existing users can make a
smooth transition.  Now that the transition is complete, they are no
longer needed.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2006-09-21 11:46:16 +10:00
Herbert Xu
28ce728a90 [CRYPTO] padlock: Added block cipher versions of CBC/ECB
This patch adds block cipher algorithms for cbc(aes) and ecb(aes) for
the PadLock device.  Once all users to the old cipher type have been
converted the old cbc/ecb PadLock operations will be removed.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2006-09-21 11:44:35 +10:00
Herbert Xu
560c06ae1a [CRYPTO] api: Get rid of flags argument to setkey
Now that the tfm is passed directly to setkey instead of the ctx, we no
longer need to pass the &tfm->crt_flags pointer.

This patch also gets rid of a few unnecessary checks on the key length
for ciphers as the cipher layer guarantees that the key length is within
the bounds specified by the algorithm.

Rather than testing dia_setkey every time, this patch does it only once
during crypto_alloc_tfm.  The redundant check from crypto_digest_setkey
is also removed.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2006-09-21 11:41:02 +10:00
Michal Ludvig
58ec415289 [CRYPTO] padlock-sha: TFMs don't need to be static
TFMs are local variables. No need to declare them 
static. After all one is enough.

Signed-off-by: Michal Ludvig <michal@logix.cz>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2006-09-21 11:41:00 +10:00
Michal Ludvig
5644bda5d6 [CRYPTO] padlock: Helper module padlock.ko
Compile a helper module padlock.ko that will try
to autoload all configured padlock algorithms.

This also provides backward compatibility with 
the ancient times before padlock.ko was renamed 
to padlock-aes.ko

Signed-off-by: Michal Ludvig <michal@logix.cz>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2006-09-21 11:41:00 +10:00
Adrian Bunk
cb17530b0a [CRYPTO] padlock-sha: Make 2 functions static
This patch makes two needlessly global functions static.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2006-09-21 11:41:00 +10:00
Michal Ludvig
6c83327515 [CRYPTO] padlock: Driver for SHA1 / SHA256 algorithms
Support for SHA1 / SHA256 algorithms in VIA C7 processors.

Signed-off-by: Michal Ludvig <michal@logix.cz>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2006-09-21 11:40:59 +10:00
Michal Ludvig
ccc17c34d6 [CRYPTO] padlock: Update private header file
PADLOCK_CRA_PRIORITY is shared between padlock-aes and padlock-sha
so it should be in the header.

On the other hand "struct cword" is only used in padlock-aes.c
so it's unnecessary to have it in padlock.h

Signed-off-by: Michal Ludvig <michal@logix.cz>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2006-09-21 11:40:22 +10:00
Herbert Xu
db5e9a4237 [CRYPTO] padlock: Add compatibility alias after rename
Whenever we rename modules we should add an alias to ensure that existing
users can still locate the new module.

This patch also gets rid of the now unused module function prototypes from
padlock.h.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2006-09-21 11:40:22 +10:00
Michal Ludvig
1191f0a493 [CRYPTO] padlock: Get rid of padlock-generic.c
Merge padlock-generic.c into padlock-aes.c and compile
AES as a standalone module. We won't make a monolithic
padlock.ko with all supported algorithms, instead we'll
compile each driver into its own module.

Signed-off-by: Michal Ludvig <michal@logix.cz>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2006-09-21 11:40:21 +10:00
Herbert Xu
cce9e06d10 [CRYPTO] api: Split out low-level API
The crypto API is made up of the part facing users such as IPsec and the
low-level part which is used by cryptographic entities such as algorithms.
This patch splits out the latter so that the two APIs are more clearly
delineated.  As a bonus the low-level API can now be modularised if all
algorithms are built as modules.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2006-09-21 11:16:30 +10:00
Michal Ludvig
cc08632f8f [CRYPTO] padlock: Fix alignment after aes_ctx rearrange
Herbert's patch 82062c72cd 
in cryptodev-2.6 tree breaks alignment rules for PadLock 
xcrypt instruction leading to General protection Oopses.

This patch fixes the problem.

Signed-off-by: Michal Ludvig <michal@logix.cz>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2006-07-15 11:08:50 +10:00
Herbert Xu
82062c72cd [CRYPTO] padlock: Rearrange context structure to reduce code size
i386 assembly has more compact instructions for accessing 7-bit offsets.
So by moving the large members to the end of the structure we can save
quite a bit of code size.  This patch shaves about 10% or 300 bytes off
the padlock-aes file.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2006-06-26 17:34:39 +10:00
Herbert Xu
6c2bb98bc3 [CRYPTO] all: Pass tfm instead of ctx to algorithms
Up until now algorithms have been happy to get a context pointer since
they know everything that's in the tfm already (e.g., alignment, block
size).

However, once we have parameterised algorithms, such information will
be specific to each tfm.  So the algorithm API needs to be changed to
pass the tfm structure instead of the context pointer.

This patch is basically a text substitution.  The only tricky bit is
the assembly routines that need to get the context pointer offset
through asm-offsets.h.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2006-06-26 17:34:39 +10:00
Herbert Xu
f10b7897ee [CRYPTO] api: Align tfm context as wide as possible
Since tfm contexts can contain arbitrary types we should provide at least
natural alignment (__attribute__ ((__aligned__))) for them.  In particular,
this is needed on the Xscale which is a 32-bit architecture with a u64 type
that requires 64-bit alignment.  This problem was reported by Ronen Shitrit.

The crypto_tfm structure's size was 44 bytes on 32-bit architectures and
80 bytes on 64-bit architectures.  So adding this requirement only means
that we have to add an extra 4 bytes on 32-bit architectures.

On i386 the natural alignment is 16 bytes which also benefits the VIA
Padlock as it no longer has to manually align its context structure to
128 bits.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2006-03-21 20:14:08 +11:00
Herbert Xu
102d60a2d8 [PATCH] padlock: Fix typo that broke 256-bit keys
A typo crept into the le32_to_cpu patch which broke 256-bit keys
in the padlock driver.  The following patch based on observations
by Michael Heyse fixes the problem.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-22 07:47:07 -08:00
Herbert Xu
c8a19c91b5 [CRYPTO] Allow AES C/ASM implementations to coexist
As the Crypto API now allows multiple implementations to be registered
for the same algorithm, we no longer have to play tricks with Kconfig
to select the right AES implementation.

This patch sets the driver name and priority for all the AES
implementations and removes the Kconfig conditions on the C implementation
for AES.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2006-01-09 14:15:39 -08:00
Herbert Xu
06ace7a9ba [CRYPTO] Use standard byte order macros wherever possible
A lot of crypto code needs to read/write a 32-bit/64-bit words in a
specific gender.  Many of them open code them by reading/writing one
byte at a time.  This patch converts all the applicable usages over
to use the standard byte order macros.

This is based on a previous patch by Denis Vlasenko.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2006-01-09 14:15:34 -08:00
Herbert Xu
2df15fffc6 [PADLOCK] Fix sparse warning about 1-bit signed bit-field
Change the bit-field in struct cword to unsigned to shut sparse up.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2006-01-09 14:15:31 -08:00
Brian Gerst
0d078f6f96 [PATCH] CONFIG_IA32
Add CONFIG_X86_32 for i386.  This allows selecting options that only apply
to 32-bit systems.

(X86 && !X86_64) becomes X86_32
(X86 ||  X86_64) becomes X86

Signed-off-by: Brian Gerst <bgerst@didntduck.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-30 17:37:10 -08:00
Herbert Xu
476df259cd [CRYPTO] Update IV correctly for Padlock CBC encryption
When the Padlock does CBC encryption, the memory pointed to by EAX is
not updated at all.  Instead, it updates the value of EAX by pointing
it to the last block in the output.  Therefore to maintain the correct
semantics we need to copy the IV.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-07-06 13:54:09 -07:00
Herbert Xu
fbdae9f3e7 [CRYPTO] Ensure cit_iv is aligned correctly
This patch ensures that cit_iv is aligned according to cra_alignmask
by allocating it as part of the tfm structure.  As a side effect the
crypto layer will also guarantee that the tfm ctx area has enough space
to be aligned by cra_alignmask.  This allows us to remove the extra
space reservation from the Padlock driver.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-07-06 13:53:29 -07:00
Herbert Xu
28e8c3ad94 [PADLOCK] Implement multi-block operations
By operating on multiple blocks at once, we expect to extract more
performance out of the VIA Padlock.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-07-06 13:52:43 -07:00
Herbert Xu
6789b2dc45 [PADLOCK] Move fast path work into aes_set_key and upper layer
Most of the work done aes_padlock can be done in aes_set_key.  This
means that we only have to do it once when the key changes rather
than every time we perform an encryption or decryption.

This patch also sets cra_alignmask to let the upper layer ensure
that the buffers fed to us are aligned correctly.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-07-06 13:52:27 -07:00
Linus Torvalds
1da177e4c3 Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00