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This patch adds aes-gcm support to crypto4xx.
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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This patch adds aes-ccm support.
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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This patch enhances existing interfaces and
functions to support AEAD ciphers in the next
patches.
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Thanks to the big overhaul of crypto4xx_build_pd(), the request-local
sa_in, sa_out and state_record allocation can be simplified.
There's no need to setup any dma coherent memory anymore and
much of the support code can be removed.
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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This patch overhauls and fixes code related to crypto4xx_build_pd()
* crypto4xx_build_pd() did not handle chained source scatterlist.
This is fixed by replacing the buggy indexed-access of &src[idx]
with sg_next() in the gather array setup loop.
* The redundant is_hash, direction, save_iv and pd_ctl members
in the crypto4xx_ctx struct have been removed.
- is_hash can be derived from the crypto_async_request parameter.
- direction is already part of the security association's
bf.dir bitfield.
- save_iv is unused.
- pd_ctl always had the host_ready bit enabled anyway.
(the hash_final case is rather pointless, since the ahash
code has been deactivated).
* make crypto4xx_build_pd()'s caller responsible for converting
the IV to the LE32 format.
* change crypto4xx_ahash_update() and crypto4xx_ahash_digest() to
initialize a temporary destination scatterlist. This allows the
removal of an ugly cast of req->result (which is a pointer to an
u8-array) to a scatterlist pointer.
* change crypto4xx_build_pd() return type to int. After all
it returns -EINPROGRESS/-EBUSY.
* fix crypto4xx_build_pd() thread-unsafe sa handling.
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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The hardware expects that the keys, IVs (and inner/outer hashes)
are in the le32 format.
This patch changes all hardware interface declarations to use
the correct LE32 data format for each field.
In order to pass __CHECK_ENDIAN__ checks, crypto4xx_memcpy_le
has to be honest about the endianness of its parameters.
The function was split and moved to the common crypto4xx_core.h
header. This allows the compiler to generate better code if the
sizes/len is a constant (various *_IV_LEN).
Please note that the hardware isn't consistent with the endiannes
of the save_digest field in the state record struct though.
The hashes produced by GHASH and CBC (for CCM) will be in LE32.
Whereas md5 and sha{1/,256,...} do not need any conversion.
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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The hmac_mc parameter of set_dynamic_sa_command_1()
was defined but not used. On closer inspection it
turns out, it was never wired up.
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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This patch improves the readability of various functions,
by replacing various void* pointers declarations with
their respective structs *. This makes it possible to go
for the eye-friendly array-indexing methods.
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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The crypto engine supports more than just aes-cbc. This patch
enables the remaining AES block cipher modes that pass the
testmanager's test vectors.
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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This patch refactors and moves the dynamic_contents helper
functions into the crypto4xx_sa.h header file.
* get_dynamic_sa_iv_size is no longer needed, as the cryptoapi
provides the required IV size information as well.
* refactor the function declarations to use the a pointer to the
dynamic_sa_contents union, instead of the crypto4xx_ctx.
* rename get_dynamic_sa_offset_key_field to get_dynamic_sa_key_field.
It returns the pointer to the key directly.
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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The driver had a union dynamic_sa_contents in place that
described the meaning of the bits in the sa_contents
variable.
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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This patch removes several unused code and definitons
(structs, variables, ...).
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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These local symbols are used only in this file.
Fix the following sparse warnings:
drivers/crypto/amcc/crypto4xx_alg.c:35:6: warning: symbol 'set_dynamic_sa_command_0' was not declared. Should it be static?
drivers/crypto/amcc/crypto4xx_alg.c:55:6: warning: symbol 'set_dynamic_sa_command_1' was not declared. Should it be static?
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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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>
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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>
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