a crypto_cipher cip member was set where a crypto_cipher blk members
should have been.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
As the padlock driver for SHA uses a software fallback to perform
partial hashing, it must implement custom import/export functions.
Otherwise hmac which depends on import/export for prehashing will
not work with padlock-sha.
Reported-by: Wolfgang Walter <wolfgang.walter@stwm.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
From: Márton Németh <nm127@freemail.hu>
The match_table field of the struct of_device_id is constant in <linux/of_platform.h>
so it is worth to make the initialization data also constant.
The semantic match that finds this kind of pattern is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@r@
disable decl_init,const_decl_init;
identifier I1, I2, x;
@@
struct I1 {
...
const struct I2 *x;
...
};
@s@
identifier r.I1, y;
identifier r.x, E;
@@
struct I1 y = {
.x = E,
};
@c@
identifier r.I2;
identifier s.E;
@@
const struct I2 E[] = ... ;
@depends on !c@
identifier r.I2;
identifier s.E;
@@
+ const
struct I2 E[] = ...;
// </smpl>
Signed-off-by: Márton Németh <nm127@freemail.hu>
Cc: Julia Lawall <julia@diku.dk>
Cc: cocci@diku.dk
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
The fallback code in cipher mode touch the union fallback.blk instead
of fallback.cip. This is wrong because we use the cipher and not the
blockcipher. This did not show any side effects yet because both types /
structs contain the same element right now.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This patch updates misc percpu related symbols such that percpu
symbols are unique and don't clash with local symbols. This serves
two purposes of decreasing the possibility of global percpu symbol
collision and allowing dropping per_cpu__ prefix from percpu symbols.
* drivers/crypto/padlock-aes.c: s/last_cword/paes_last_cword/
* drivers/lguest/x86/core.c: s/last_cpu/lg_last_cpu/
* drivers/s390/net/netiucv.c: rename the variable used in a macro to
avoid clashing with percpu symbol
* arch/mn10300/kernel/kprobes.c: replace current_ prefix with cur_ for
static variables. Please note that percpu symbol current_kprobe
can't be changed as it's used by generic code.
Partly based on Rusty Russell's "alloc_percpu: rename percpu vars
which cause name clashes" patch.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Chuck Ebbert <cebbert@redhat.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Masami Hiramatsu <mhiramat@redhat.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: linux390@de.ibm.com
The PadLock hardware requires the output buffer for SHA to be
128-bit aligned. We currentply place the buffer on the stack,
and ask gcc to align it to 128 bits. That doesn't work on i386
because the kernel stack is only aligned to 32 bits. This patch
changes the code to align the buffer by hand so that the hardware
doesn't fault on unaligned buffers.
Reported-by: Séguier Régis <rguier@e-teleport.net>
Tested-by: Séguier Régis <rguier@e-teleport.net>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Enabling extended addressing in the h/w requires we always assign the
extended address component (eptr) of the talitos h/w pointer. This is
for e500 based platforms with large memories.
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
align channel access locks onto separate cache lines (for performance
reasons). This is done by placing per-channel variables into their own
private struct, and using the cacheline_aligned attribute within that
struct.
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
don't do request->src vs. assoc pointer math - it's the same as adding
assoclen and ivsize (just with more effort).
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This adds support for Marvell's Cryptographic Engines and Security
Accelerator (CESA) which can be found on a few SoC.
Tested with dm-crypt.
Acked-by: Nicolas Pitre <nico@marvell.com>
Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
When we encounter partial blocks in finup, we'll invoke the xsha
instruction with a bogus count that is not a multiple of the block
size. This patch fixes it.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
The previous change to allow hashing from states other than the
initial broke compilation on i386 because the inline assembly
tried to squeeze a u64 into a 32-bit register. As we've already
checked for 32-bit overflows we can simply truncate it to u32,
or unsigned long so that we don't truncate at all on x86-64.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
The crypto4xx SHA implementation keeps the hash state in the tfm
data structure. This breaks a fundamental requirement of ahash
implementations that they must be reentrant.
This patch disables the broken implementation.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This patch changes crypto4xx to use the new style ahash type.
In particular, we now use ahash_alg to define ahash algorithms
instead of crypto_alg.
This is achieved by introducing a union that encapsulates the
new type and the existing crypto_alg structure. They're told
apart through a u32 field containing the type value.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This patch makes crypto4xx use crypto_ahash_set_reqsize to avoid
accessing crypto_ahash directly.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This patch converts the padlock-sha implementation to shash.
In doing so the existing mechanism of storing the data until
final is no longer viable as we do not have a way of allocating
data in crypto_shash_init and then reliably freeing it.
This is just as well because a better way of handling the problem
is to hash everything but the last chunk using normal sha code
and then provide the intermediate result to the padlock device.
This is good enough because the primary application of padlock-sha
is IPsec and there the data is laid out in the form of an hmac
header followed by the rest of the packet. In essence we can
provide all the data to the padlock as the hmac header only needs
to be hashed once.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Extend previous workarounds for the prefetch bug to cover CBC mode,
clean up the code a bit.
Signed-off-by: Chuck Ebbert <cebbert@redhat.com>
Acked-by: Harald Welte <HaraldWelte@viatech.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
The VIA Nano processor has a bug that makes it prefetch extra data
during encryption operations, causing spurious page faults. Extend
existing workarounds for ECB mode to copy the data to an temporary
buffer to avoid the problem.
Signed-off-by: Chuck Ebbert <cebbert@redhat.com>
Acked-by: Harald Welte <HaraldWelte@viatech.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
.ko is normally not included in Kconfig help, make it consistent.
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The remove member of the pci_driver hifn_pci_driver uses __devexit_p(),
so the remove function itself should be marked with __devexit. And where
there be __devexit on the remove, so is there __devinit on the probe.
Similarly, the module_init/module_exit functions should be declared with
plain __init/__exit markings, not the hotplug __dev{init,exit} ones.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
CC: Patrick McHardy <kaber@trash.net>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
When we added 64-bit support to padlock the dependency on x86
was lost. This causes build failures on non-x86 architectures.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Almost everything stays the same, we need just to use the extended registers
on the bit variant.
Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
the ICV check bit only gets set in decrypt entry points
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Add these ablkcipher algorithms:
cbc(aes),
cbc(des3_ede).
Added handling of chained scatterlists with zero length entry
because eseqiv uses it.
Added new map and unmap routines.
Signed-off-by: Lee Nipper <lee.nipper@gmail.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This patch is preparation for adding new algorithm types.
Some elements which are AEAD specific were renamed.
The algorithm template structure was changed to
use crypto_alg, and talitos_alg_alloc was made
more general with respect to algorithm types.
ipsec_esp_edesc is renamed to talitos_edesc
to use it in the upcoming ablkcipher routines.
Signed-off-by: Lee Nipper <lee.nipper@gmail.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Since the padlock-aes driver doesn't require a fallback (it's
only padlock-sha that does), it should use the aes alias rather
than aes-all so that ones that do need a fallback can use it.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
- the loaded firmware may not support crypto at all or
only support DES and 3DES but not AES or
support DES, 3DES and AES.
- in case of no crypto support of the firmware, the module load will fail.
- in case of missing AES support, the AES algorithms are not registered
and a warning is printed during module load.
Signed-off-by: Christian Hohnstaedt <chohnstaedt@innominate.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32)
Signed-off-by: Yang Hongyang<yanghy@cn.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
It is a fairly common operation to have a pointer to a work and to need a
pointer to the delayed work it is contained in. In particular, all
delayed works which want to rearm themselves will have to do that. So it
would seem fair to offer a helper function for this operation.
[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Ingo Molnar <mingo@elte.hu>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Greg KH <greg@kroah.com>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
- keep dma functions away from chained scatterlists.
Use the existing scatterlist iteration inside the driver
to call dma_map_single() for each chunk and avoid dma_map_sg().
Signed-off-by: Christian Hohnstaedt <chohnstaedt@innominate.com>
Tested-By: Karl Hiramoto <karl@hiramoto.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
There is another user of IXP4xx queue manager, fix it.
Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
With the mandatory algorithm testing at registration, we have
now created a deadlock with algorithms requiring fallbacks.
This can happen if the module containing the algorithm requiring
fallback is loaded first, without the fallback module being loaded
first. The system will then try to test the new algorithm, find
that it needs to load a fallback, and then try to load that.
As both algorithms share the same module alias, it can attempt
to load the original algorithm again and block indefinitely.
As algorithms requiring fallbacks are a special case, we can fix
this by giving them a different module alias than the rest. Then
it's just a matter of using the right aliases according to what
algorithms we're trying to find.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This patch adds support for AMCC ppc4xx security device driver. This is the
initial release that includes the driver framework with AES and SHA1 algorithms
support.
The remaining algorithms will be released in the near future.
Signed-off-by: James Hsiao <jhsiao@amcc.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This patch converts the S390 sha algorithms to the new shash interface.
With fixes by Jan Glauber.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Previous commit for interrupt mitigation moved the done interrupt
acknowlegement from the isr to the talitos_done tasklet.
This patch moves the done interrupt acknowledgement back
into the isr so that done interrupts will always be acknowledged.
This covers the case for acknowledging interrupts for channel done processing
that has actually already been completed by the tasklet prior to fielding
a pending interrupt.
Signed-off-by: Lee Nipper <lee.nipper@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Base versions handle constant folding just fine.
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Use KM_SOFTIRQ instead of KM_IRQ in tasklet context.
Added bug_on on input no-page condition.
Signed-off-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Fix queue management. Change ring size and perform its check not
one after another descriptor, but using stored pointers to the last
checked descriptors.
Signed-off-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
HIFN uses the transform context to store per-request data, which breaks
when more than one request is outstanding. Move per request members from
struct hifn_context to a new struct hifn_request_context and convert
the code to use this.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Resetting the control word is quite expensive. Fortunately this
isn't an issue for the common operations such as CBC and ECB as
the whole operation is done through a single call. However, modes
such as LRW and XTS have to call padlock over and over again for
one operation which really hurts if each call resets the control
word.
This patch uses an idea by Sebastian Siewior to store the last
control word used on a CPU and only reset the control word if
that changes.
Note that any task switch automatically resets the control word
so we only need to be accurate with regard to the stored control
word when no task switches occur.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
In commit ec6644d632 "crypto: talitos - Preempt
overflow interrupts", the test in atomic_inc_not_zero was interpreted by the
author to be applied after the increment operation (not before). This off-by-one
fix prevents overflow error interrupts from occurring when requests are frequent
and large enough to do so.
Signed-off-by: Vishnu Suresh <Vishnu@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Roel Kluin