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path: root/drivers/crypto/atmel-aes.c (follow)
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2022-07-15crypto: atmel-aes - Drop if with an always false conditionUwe Kleine-König1-2/+1
The remove callback is only called after probe completed successfully. In this case platform_set_drvdata() was called with a non-NULL argument and so aes_dd is never NULL. This is a preparation for making platform remove callbacks return void. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-02-05crypto: atmel - add support for AES and SHA IPs available on lan966x SoCKavyasree Kotagiri1-0/+1
This patch adds support for hardware version of AES and SHA IPs available on lan966x SoC. Signed-off-by: Kavyasree Kotagiri <kavyasree.kotagiri@microchip.com> Reviewed-by: Tudor Ambarus <tudor.ambarus@microchip.com> Tested-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2021-11-20crypto: atmel-aes - Reestablish the correct tfm context at dequeueTudor Ambarus1-5/+1
In case there were more requests from different tfms in the crypto queue, only the context of the last initialized tfm was considered. Fixes: ec2088b66f7a ("crypto: atmel-aes - Allocate aes dev at tfm init time") Reported-by: Wolfgang Ocker <weo@reccoware.de> Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2021-07-30crypto: atmel-aes - use swap()Salah Triki1-6/+2
Use swap() instead of implementing it in order to make code more clean. Signed-off-by: Salah Triki <salah.triki@gmail.com> Reviewed-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2021-07-30crypto: atmel-aes - Allocate aes dev at tfm init timeTudor Ambarus1-33/+43
Allocate the atmel_aes_dev data at tfm init time, and not for each crypt request. There's a single AES IP per SoC, clarify that in the code. Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2021-07-30crypto: atmel-aes - Add fallback to XTS software implementationTudor Ambarus1-4/+51
XTS is supported just for input lengths with data units of 128-bit blocks. Add a fallback to software implementation when the last block is shorter than 128 bits. Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2021-07-30crypto: atmel - Set OFB's blocksize to 1Tudor Ambarus1-1/+1
Set cra_blocksize to 1 to indicate OFB is a stream cipher. Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2021-07-30crypto: atmel-aes - Add NIST 800-38A's zero length cryptlen constraintTudor Ambarus1-0/+7
NIST 800-38A requires for the ECB, CBC, CFB, OFB and CTR modes that the plaintext and ciphertext to have a positive integer length. Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2021-07-30crypto: atmel-aes - Add XTS input length constraintTudor Ambarus1-0/+3
Input length smaller than block size does not make sense for XTS. Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2021-07-30crypto: atmel-aes - Add blocksize constraint for ECB and CBC modesTudor Ambarus1-1/+6
NIST 800-38A requires for the ECB and CBC modes that the total number of bits in the plaintext to be a multiple of the block cipher. Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-09-25crypto: atmel-aes - convert to use be32_add_cpu()Liu Shixin1-1/+1
Convert cpu_to_be32(be32_to_cpu(E1) + E2) to use be32_add_cpu(). Signed-off-by: Liu Shixin <liushixin2@huawei.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-01-22crypto: atmel-{aes,sha,tdes} - Retire crypto_platform_dataTudor Ambarus1-31/+1
These drivers no longer need it as they are only probed via DT. crypto_platform_data was allocated but unused, so remove it. This is a follow up for: commit 45a536e3a7e0 ("crypto: atmel-tdes - Retire dma_request_slave_channel_compat()") commit db28512f48e2 ("crypto: atmel-sha - Retire dma_request_slave_channel_compat()") commit 62f72cbdcf02 ("crypto: atmel-aes - Retire dma_request_slave_channel_compat()") Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-01-09crypto: remove propagation of CRYPTO_TFM_RES_* flagsEric Biggers1-4/+1
The CRYPTO_TFM_RES_* flags were apparently meant as a way to make the ->setkey() functions provide more information about errors. But these flags weren't actually being used or tested, and in many cases they weren't being set correctly anyway. So they've now been removed. Also, if someone ever actually needs to start better distinguishing ->setkey() errors (which is somewhat unlikely, as this has been unneeded for a long time), we'd be much better off just defining different return values, like -EINVAL if the key is invalid for the algorithm vs. -EKEYREJECTED if the key was rejected by a policy like "no weak keys". That would be much simpler, less error-prone, and easier to test. So just remove CRYPTO_TFM_RES_MASK and all the unneeded logic that propagates these flags around. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-01-09crypto: remove CRYPTO_TFM_RES_BAD_KEY_LENEric Biggers1-7/+2
The CRYPTO_TFM_RES_BAD_KEY_LEN flag was apparently meant as a way to make the ->setkey() functions provide more information about errors. However, no one actually checks for this flag, which makes it pointless. Also, many algorithms fail to set this flag when given a bad length key. Reviewing just the generic implementations, this is the case for aes-fixed-time, cbcmac, echainiv, nhpoly1305, pcrypt, rfc3686, rfc4309, rfc7539, rfc7539esp, salsa20, seqiv, and xcbc. But there are probably many more in arch/*/crypto/ and drivers/crypto/. Some algorithms can even set this flag when the key is the correct length. For example, authenc and authencesn set it when the key payload is malformed in any way (not just a bad length), the atmel-sha and ccree drivers can set it if a memory allocation fails, and the chelsio driver sets it for bad auth tag lengths, not just bad key lengths. So even if someone actually wanted to start checking this flag (which seems unlikely, since it's been unused for a long time), there would be a lot of work needed to get it working correctly. But it would probably be much better to go back to the drawing board and just define different return values, like -EINVAL if the key is invalid for the algorithm vs. -EKEYREJECTED if the key was rejected by a policy like "no weak keys". That would be much simpler, less error-prone, and easier to test. So just remove this flag. Signed-off-by: Eric Biggers <ebiggers@google.com> Reviewed-by: Horia Geantă <horia.geanta@nxp.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2019-12-20crypto: atmel-aes - Fix CTR counter overflow when multiple fragmentsTudor Ambarus1-1/+7
The CTR transfer works in fragments of data of maximum 1 MByte because of the 16 bit CTR counter embedded in the IP. Fix the CTR counter overflow handling for messages larger than 1 MByte. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Fixes: 781a08d9740a ("crypto: atmel-aes - Fix counter overflow in CTR mode") Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2019-12-20crypto: atmel-{aes,tdes} - Update the IV only when the op succeedsTudor Ambarus1-1/+1
Do not update the IV in case of errors. Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2019-12-20crypto: atmel-{sha,tdes} - Print warn message even when deferringTudor Ambarus1-1/+1
Even when deferring, we would like to know what caused it. Update dev_warn to dev_err because if the DMA init fails, the probe is stopped. Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2019-12-20crypto: atmel-{aes,sha,tdes} - Stop passing unused argument in _dma_init()Tudor Ambarus1-3/+2
pdata is not used. Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2019-12-20crypto: atmel-{aes,sha,tdes} - Drop duplicate init of dma_slave_config.directionTudor Ambarus1-1/+0
The 'direction' member of the dma_slave_config will be going away as it duplicates the direction given in the prepare call. Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2019-12-20crypto: atmel-{aes,sha} - Fix incorrect use of dmaengine_terminate_all()Tudor Ambarus1-30/+2
device_terminate_all() is used to abort all the pending and ongoing transfers on the channel, it should be used just in the error path. Also, dmaengine_terminate_all() is deprecated and one should use dmaengine_terminate_async() or dmaengine_terminate_sync(). The method is not used in atomic context, use dmaengine_terminate_sync(). A secondary aspect of this patch is that it luckily avoids a deadlock between atmel_aes and at_hdmac.c. While in tasklet with the lock held, the dma controller invokes the client callback (dmaengine_terminate_all), which tries to get the same lock. The at_hdmac fix would be to drop the lock before invoking the client callback, a fix on at_hdmac will follow. Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2019-12-11crypto: atmel-{aes,sha,tdes} - Group common alg type init in dedicated methodsTudor Ambarus1-64/+18
Move common alg type init to dedicated methods. Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2019-12-11crypto: atmel-aes - Use gcm helper to check authsizeTudor Ambarus1-15/+1
Use core helper functions. Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2019-12-11crypto: atmel-aes - Fix saving of IV for CTR modeTudor Ambarus1-12/+31
The req->iv of the skcipher_request is expected to contain the last used IV. Update the req->iv for CTR mode. Fixes: bd3c7b5c2aba ("crypto: atmel - add Atmel AES driver") Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2019-12-11crypto: atmel-aes - Fix counter overflow in CTR modeTudor Ambarus1-25/+12
32 bit counter is not supported by neither of our AES IPs, all implement a 16 bit block counter. Drop the 32 bit block counter logic. Fixes: fcac83656a3e ("crypto: atmel-aes - fix the counter overflow in CTR mode") Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2019-12-11crypto: atmel-{aes,tdes} - Do not save IV for ECB modeTudor Ambarus1-2/+7
ECB mode does not use IV. Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2019-12-11crypto: atmel-{aes,sha,tdes} - Rename labels in probe()Tudor Ambarus1-14/+13
Choose label names which say what the goto does and not from where the goto was issued. This avoids adding superfluous labels like "err_aes_buff". Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2019-12-11crypto: atmel-{aes,sha,tdes} - Drop superfluous error message in probe()Tudor Ambarus1-11/+4
In case the probe fails, the device/driver core takes care of printing the driver name, device name and error code. Drop superfluous error message at probe. Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2019-12-11crypto: atmel-aes - Retire dma_request_slave_channel_compat()Peter Ujfalusi1-40/+10
The driver no longer boots in legacy mode, only via DT. This makes the dma_request_slave_channel_compat() redundant. If ever the filter function would be executed it will return false as the dma_slave is not really initialized. Switch to use dma_request_chan() which would allow legacy boot if ever needed again by configuring dma_slave_map for the DMA driver. At the same time skip allocating memory for dma_slave as it is not used anymore. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2019-11-22crypto: atmel-aes - Change data type for "lastc" bufferTudor Ambarus1-1/+1
In case of in-place decryption, the "lastc" buffer is used to copy the last ciphertext block before the decryption of the message. It is later used to update the req->iv of the skcipher_request. "lastc" variable is not used to interact with the hardware, there is no restriction to be of type "u32". Change the type of "lastc" to "u8". Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2019-11-17crypto: atmel-aes - switch to skcipher APIArd Biesheuvel1-264/+247
Commit 7a7ffe65c8c5 ("crypto: skcipher - Add top-level skcipher interface") dated 20 august 2015 introduced the new skcipher API which is supposed to replace both blkcipher and ablkcipher. While all consumers of the API have been converted long ago, some producers of the ablkcipher remain, forcing us to keep the ablkcipher support routines alive, along with the matching code to expose [a]blkciphers via the skcipher API. So switch this driver to the skcipher API, allowing us to finally drop the ablkcipher code in the near future. Cc: Nicolas Ferre <nicolas.ferre@microchip.com> Cc: Alexandre Belloni <alexandre.belloni@bootlin.com> Cc: Ludovic Desroches <ludovic.desroches@microchip.com> Tested-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Reviewed-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2019-11-08crypto: atmel - Fix remaining endianess warningsHerbert Xu1-1/+1
This patch fixes the remaining sparse endianness warnings. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2019-11-08crypto: atmel - Fix authenc support when it is set to mHerbert Xu1-9/+9
As it is if CONFIG_CRYPTO_DEV_ATMEL_AUTHENC is set to m it is in effect disabled. This patch fixes it by using IS_ENABLED instead of ifdef. Fixes: 89a82ef87e01 ("crypto: atmel-authenc - add support to...") Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Reviewed-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2019-10-26crypto: atmel - fix data types for __be{32,64}Ben Dooks (Codethink)1-15/+15
The driver uses a couple of buffers that seem to be __be32 or __be64 fields, but declares them as u32. This means there are a number of warnings from sparse due to casting to/from __beXXX. Fix these by changing the types of the buffer and the associated variables. drivers/crypto/atmel-aes.c:1023:15: warning: cast to restricted __be32 drivers/crypto/atmel-aes.c:1023:15: warning: cast to restricted __be32 drivers/crypto/atmel-aes.c:1023:15: warning: cast to restricted __be32 drivers/crypto/atmel-aes.c:1023:15: warning: cast to restricted __be32 drivers/crypto/atmel-aes.c:1023:15: warning: cast to restricted __be32 drivers/crypto/atmel-aes.c:1023:15: warning: cast to restricted __be32 drivers/crypto/atmel-aes.c:1059:28: warning: incorrect type in assignment (different base types) drivers/crypto/atmel-aes.c:1059:28: expected unsigned int drivers/crypto/atmel-aes.c:1059:28: got restricted __be32 [usertype] drivers/crypto/atmel-aes.c:1550:28: warning: incorrect type in assignment (different base types) drivers/crypto/atmel-aes.c:1550:28: expected unsigned int drivers/crypto/atmel-aes.c:1550:28: got restricted __be32 [usertype] drivers/crypto/atmel-aes.c:1561:39: warning: incorrect type in assignment (different base types) drivers/crypto/atmel-aes.c:1561:39: expected unsigned long long [usertype] drivers/crypto/atmel-aes.c:1561:39: got restricted __be64 [usertype] drivers/crypto/atmel-aes.c:1599:17: warning: cast to restricted __be32 drivers/crypto/atmel-aes.c:1599:17: warning: cast to restricted __be32 drivers/crypto/atmel-aes.c:1599:17: warning: cast to restricted __be32 drivers/crypto/atmel-aes.c:1599:17: warning: cast to restricted __be32 drivers/crypto/atmel-aes.c:1599:17: warning: cast to restricted __be32 drivers/crypto/atmel-aes.c:1599:17: warning: cast to restricted __be32 drivers/crypto/atmel-aes.c:1599:17: warning: cast to restricted __be32 drivers/crypto/atmel-aes.c:1599:17: warning: cast to restricted __be32 drivers/crypto/atmel-aes.c:1599:17: warning: cast to restricted __be32 drivers/crypto/atmel-aes.c:1599:17: warning: cast to restricted __be32 drivers/crypto/atmel-aes.c:1599:17: warning: cast to restricted __be32 drivers/crypto/atmel-aes.c:1599:17: warning: cast to restricted __be32 drivers/crypto/atmel-aes.c:1599:17: warning: cast to restricted __be32 drivers/crypto/atmel-aes.c:1599:17: warning: cast to restricted __be32 drivers/crypto/atmel-aes.c:1599:17: warning: cast to restricted __be32 drivers/crypto/atmel-aes.c:1599:17: warning: cast to restricted __be32 drivers/crypto/atmel-aes.c:1599:17: warning: cast to restricted __be32 drivers/crypto/atmel-aes.c:1599:17: warning: cast to restricted __be32 drivers/crypto/atmel-aes.c:1599:17: warning: cast to restricted __be32 drivers/crypto/atmel-aes.c:1599:17: warning: cast to restricted __be32 drivers/crypto/atmel-aes.c:1599:17: warning: cast to restricted __be32 drivers/crypto/atmel-aes.c:1599:17: warning: cast to restricted __be32 drivers/crypto/atmel-aes.c:1599:17: warning: cast to restricted __be32 drivers/crypto/atmel-aes.c:1599:17: warning: cast to restricted __be32 drivers/crypto/atmel-aes.c:1599:17: warning: cast to restricted __be32 drivers/crypto/atmel-aes.c:1599:17: warning: cast to restricted __be32 drivers/crypto/atmel-aes.c:1599:17: warning: cast to restricted __be32 drivers/crypto/atmel-aes.c:1599:17: warning: cast to restricted __be32 drivers/crypto/atmel-aes.c:1599:17: warning: cast to restricted __be32 drivers/crypto/atmel-aes.c:1599:17: warning: cast to restricted __be32 drivers/crypto/atmel-aes.c:1599:17: warning: cast to restricted __be32 drivers/crypto/atmel-aes.c:1599:17: warning: cast to restricted __be32 drivers/crypto/atmel-aes.c:1599:17: warning: cast to restricted __be32 drivers/crypto/atmel-aes.c:1599:17: warning: cast to restricted __be32 drivers/crypto/atmel-aes.c:1599:17: warning: cast to restricted __be32 drivers/crypto/atmel-aes.c:1599:17: warning: cast to restricted __be32 drivers/crypto/atmel-aes.c:1599:15: warning: incorrect type in assignment (different base types) drivers/crypto/atmel-aes.c:1599:15: expected unsigned int [usertype] drivers/crypto/atmel-aes.c:1599:15: got restricted __be32 [usertype] drivers/crypto/atmel-aes.c:1692:17: warning: incorrect type in assignment (different base types) drivers/crypto/atmel-aes.c:1692:17: expected unsigned long long [usertype] drivers/crypto/atmel-aes.c:1692:17: got restricted __be64 [usertype] drivers/crypto/atmel-aes.c:1693:17: warning: incorrect type in assignment (different base types) drivers/crypto/atmel-aes.c:1693:17: expected unsigned long long [usertype] drivers/crypto/atmel-aes.c:1693:17: got restricted __be64 [usertype] drivers/crypto/atmel-aes.c:1888:63: warning: incorrect type in initializer (different base types) drivers/crypto/atmel-aes.c:1888:63: expected unsigned int drivers/crypto/atmel-aes.c:1888:63: got restricted __le32 [usertype] Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2019-10-10crypto: atmel-aes - Fix IV handling when req->nbytes < ivsizeTudor Ambarus1-23/+30
commit 394a9e044702 ("crypto: cfb - add missing 'chunksize' property") adds a test vector where the input length is smaller than the IV length (the second test vector). This revealed a NULL pointer dereference in the atmel-aes driver, that is caused by passing an incorrect offset in scatterwalk_map_and_copy() when atmel_aes_complete() is called. Do not save the IV in req->info of ablkcipher_request (or equivalently req->iv of skcipher_request) when req->nbytes < ivsize, because the IV will not be further used. While touching the code, modify the type of ivsize from int to unsigned int, to comply with the return type of crypto_ablkcipher_ivsize(). Fixes: 91308019ecb4 ("crypto: atmel-aes - properly set IV after {en,de}crypt") Cc: <stable@vger.kernel.org> Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2019-08-09crypto: drivers - Remove dev_err() usage after platform_get_irq()Stephen Boyd1-1/+0
We don't need dev_err() messages when platform_get_irq() fails now that platform_get_irq() prints an error message itself when something goes wrong. Let's remove these prints with a simple semantic patch. // <smpl> @@ expression ret; struct platform_device *E; @@ ret = ( platform_get_irq(E, ...) | platform_get_irq_byname(E, ...) ); if ( \( ret < 0 \| ret <= 0 \) ) { ( -if (ret != -EPROBE_DEFER) -{ ... -dev_err(...); -... } | ... -dev_err(...); ) ... } // </smpl> While we're here, remove braces on if statements that only have one statement (manually). Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: "David S. Miller" <davem@davemloft.net> Cc: <linux-crypto@vger.kernel.org> Signed-off-by: Stephen Boyd <swboyd@chromium.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-09-04crypto: atmel - switch to SPDX license identifiersTudor Ambarus1-4/+1
Adopt the SPDX license identifiers to ease license compliance management. Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-03-03crypto: atmel-aes - fix the keys zeroing on errorsAntoine Tenart1-1/+1
The Atmel AES driver uses memzero_explicit on the keys on error, but the variable zeroed isn't the right one because of a typo. Fix this by using the right variable. Fixes: 89a82ef87e01 ("crypto: atmel-authenc - add support to authenc(hmac(shaX), Y(aes)) modes") Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com> Reviewed-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-02-22crypto: atmel - Delete error messages for a failed memory allocation in six functionsMarkus Elfring1-5/+1
Omit extra messages for a memory allocation failure in these functions. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Reviewed-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-11-06crypto: atmel - remove empty functionsTudor-Dan Ambarus1-20/+0
Pointer members of an object with static storage duration, if not explicitly initialized, will be initialized to a NULL pointer. The crypto API checks if these pointers are not NULL before using them, therefore we can safely remove these empty functions. Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-11-03crypto: atmel-aes - Reset the controller before each useRomain Izard1-7/+3
When using the rfc4543(gcm(aes))) mode, the registers of the hardware engine are not empty after use. If the engine is not reset before its next use, the following results will be invalid. Always reset the hardware engine. Signed-off-by: Romain Izard <romain.izard.pro@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-11-03crypto: atmel-aes - properly set IV after {en,de}cryptRomain Izard1-3/+37
Certain cipher modes like CTS expect the IV (req->info) of ablkcipher_request (or equivalently req->iv of skcipher_request) to contain the last ciphertext block when the {en,de}crypt operation is done. Fix this issue for the Atmel AES hardware engine. The tcrypt test case for cts(cbc(aes)) is now correctly passed. In the case of in-place decryption, copy the ciphertext in an intermediate buffer before decryption. Signed-off-by: Romain Izard <romain.izard.pro@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-11-03crypto: atmel - remove useless irq initTudor-Dan Ambarus1-2/+0
irq would be set to -1 and then unused, if we failed to get IORESOURCE_MEM. Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-11-03crypto: atmel - return appropriate error codeTudor-Dan Ambarus1-2/+1
Return -ENODEV when dma_request_slave_channel_compat() fails. Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-09-22crypto: atmel - Use GCM IV size constantCorentin LABBE1-2/+3
This patch replace GCM IV size value by their constant name. Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-02-03crypto: atmel-authenc - add support to authenc(hmac(shaX), Y(aes)) modesCyrille Pitchen1-1/+447
This patchs allows to combine the AES and SHA hardware accelerators on some Atmel SoCs. Doing so, AES blocks are only written to/read from the AES hardware. Those blocks are also transferred from the AES to the SHA accelerator internally, without additionnal accesses to the system busses. Hence, the AES and SHA accelerators work in parallel to process all the data blocks, instead of serializing the process by (de)crypting those blocks first then authenticating them after like the generic crypto/authenc.c driver does. Of course, both the AES and SHA hardware accelerators need to be available before we can start to process the data blocks. Hence we use their crypto request queue to synchronize both drivers. Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-02-03crypto: atmel-aes - fix atmel_aes_handle_queue()Cyrille Pitchen1-2/+5
This patch fixes the value returned by atmel_aes_handle_queue(), which could have been wrong previously when the crypto request was started synchronously but became asynchronous during the ctx->start() call. Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-11-01crypto: atmel - drop pointless static qualifier in atmel_aes_probe()Wei Yongjun1-1/+1
There is no need to have the 'struct atmel_aes_dev *aes_dd' variable static since new value always be assigned before use it. Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-10-21crypto: atmel-aes - add support to the XTS modeCyrille Pitchen1-6/+179
This patch adds the xts(aes) algorithm, which is supported from hardware version 0x500 and above (sama5d2x). Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-10-21crypto: atmel-aes - fix compiler error when VERBOSE_DEBUG is definedCyrille Pitchen1-1/+1
This patch fixes a compiler error when VERBOSE_DEBUG is defined. Indeed, in atmel_aes_write(), the 3rd argument of atmel_aes_reg_name() was missing. Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com> Reported-by: Levent Demir <levent.demir@inria.fr> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-03-17Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Linus Torvalds1-8/+2
Pull crypto update from Herbert Xu: "Here is the crypto update for 4.6: API: - Convert remaining crypto_hash users to shash or ahash, also convert blkcipher/ablkcipher users to skcipher. - Remove crypto_hash interface. - Remove crypto_pcomp interface. - Add crypto engine for async cipher drivers. - Add akcipher documentation. - Add skcipher documentation. Algorithms: - Rename crypto/crc32 to avoid name clash with lib/crc32. - Fix bug in keywrap where we zero the wrong pointer. Drivers: - Support T5/M5, T7/M7 SPARC CPUs in n2 hwrng driver. - Add PIC32 hwrng driver. - Support BCM6368 in bcm63xx hwrng driver. - Pack structs for 32-bit compat users in qat. - Use crypto engine in omap-aes. - Add support for sama5d2x SoCs in atmel-sha. - Make atmel-sha available again. - Make sahara hashing available again. - Make ccp hashing available again. - Make sha1-mb available again. - Add support for multiple devices in ccp. - Improve DMA performance in caam. - Add hashing support to rockchip" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (116 commits) crypto: qat - remove redundant arbiter configuration crypto: ux500 - fix checks of error code returned by devm_ioremap_resource() crypto: atmel - fix checks of error code returned by devm_ioremap_resource() crypto: qat - Change the definition of icp_qat_uof_regtype hwrng: exynos - use __maybe_unused to hide pm functions crypto: ccp - Add abstraction for device-specific calls crypto: ccp - CCP versioning support crypto: ccp - Support for multiple CCPs crypto: ccp - Remove check for x86 family and model crypto: ccp - memset request context to zero during import lib/mpi: use "static inline" instead of "extern inline" lib/mpi: avoid assembler warning hwrng: bcm63xx - fix non device tree compatibility crypto: testmgr - allow rfc3686 aes-ctr variants in fips mode. crypto: qat - The AE id should be less than the maximal AE number lib/mpi: Endianness fix crypto: rockchip - add hash support for crypto engine in rk3288 crypto: xts - fix compile errors crypto: doc - add skcipher API documentation crypto: doc - update AEAD AD handling ...
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