Add a TDMA descriptor at the end of the request for copying the
output IV vector via a DMA transfer. This is a good way for offloading
as much as processing as possible to the DMA and the crypto engine.
This is also required for processing multiple cipher requests
in chained mode, otherwise the content of the IV vector would be
overwritten by the last processed request.
Signed-off-by: Romain Perier <romain.perier@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

So far, the way that the type of a TDMA operation was checked was wrong.
We have to use the type mask in order to get the right part of the flag
containing the type of the operation.
Signed-off-by: Romain Perier <romain.perier@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Add a BUG_ON() call when the driver tries to launch a crypto request
while the engine is still processing the previous one. This replaces
a silent system hang by a verbose kernel panic with the associated
backtrace to let the user know that something went wrong in the CESA
driver.
Signed-off-by: Romain Perier <romain.perier@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Adding a macro constant to be used for the size of the crypto queue,
instead of using a numeric value directly. It will be easier to
maintain in case we add more than one crypto queue of the same size.
Signed-off-by: Romain Perier <romain.perier@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

On 16-byte requests the optimised version is actually slower than
the generic code, so we should simply use that instead.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Cheers,

This patch commit eed1e1af as
it is only a workaround for the real bug and the proper fix has
now been applied as 055ddaac
("crypto: user - re-add size check for CRYPTO_MSG_GETALG").
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

We accidentally return PTR_ERR(NULL) which is success but we should
return -ENOMEM.

Fixes: 35591285 ('crypto: drbg - use CTR AES instead of ECB AES')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Added support for SHA-3 algorithm test's
in tcrypt module and related test vectors.
Signed-off-by: Raveendra Padasalagi <raveendra.padasalagi@broadcom.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

This patch adds the implementation of SHA3 algorithm
in software and it's based on original implementation
pushed in patch https://lwn.net/Articles/518415/ with
additional changes to match the padding rules specified
in SHA-3 specification.
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Raveendra Padasalagi <raveendra.padasalagi@broadcom.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

EXTRA_CFLAGS is still supported but its usage is deprecated.
Signed-off-by: Tudor Ambarus <tudor-dan.ambarus@nxp.com>
Reviewed-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

An endianess fix mistakenly used higher_32_bits() instead of
upper_32_bits(), and that doesn't exist:

drivers/crypto/caam/desc_constr.h: In function 'append_ptr':
drivers/crypto/caam/desc_constr.h:84:75: error: implicit declaration of function 'higher_32_bits' [-Werror=implicit-function-declaration]
  *offset = cpu_to_caam_dma(ptr);
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 261ea058 ("crypto: caam - handle core endianness != caam endianness")
Reviewed-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

As it is if you ask for a sync gcm you may actually end up with
an async one because it does not filter out async implementations
of ghash.

This patch fixes this by adding the necessary filter when looking
for ghash.

Cc: stable@vger.kernel.org
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

crypto/drbg.c:1637:39-40: Unneeded semicolon

 Remove unneeded semicolon.

Generated by: scripts/coccinelle/misc/semicolon.cocci

CC: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Acked-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Return the raw key with no other processing so that the caller
can copy it or MPI parse it, etc.

The scope is to have only one ANS.1 parser for all RSA
implementations.

Update the RSA software implementation so that it does
the MPI conversion on top.
Signed-off-by: Tudor Ambarus <tudor-dan.ambarus@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

The TFM object maintains the key for the CTR DRBG.
Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

The CTR DRBG update function performs a full CTR AES operation including
the XOR with "plaintext" data. Hence, remove the XOR from the code and
use the CTR mode to do the XOR.
Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Hardware cipher implementation may require aligned buffers. All buffers
that potentially are processed with a cipher are now aligned.
Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

The CTR DRBG derives its random data from the CTR that is encrypted with
AES.

This patch now changes the CTR DRBG implementation such that the
CTR AES mode is employed. This allows the use of steamlined CTR AES
implementation such as ctr-aes-aesni.

Unfortunately there are the following subtile changes we need to apply
when using the CTR AES mode:

- the CTR mode increments the counter after the cipher operation, but
  the CTR DRBG requires the increment before the cipher op. Hence, the
  crypto_inc is applied to the counter (drbg->V) once it is
  recalculated.

- the CTR mode wants to encrypt data, but the CTR DRBG is interested in
  the encrypted counter only. The full CTR mode is the XOR of the
  encrypted counter with the plaintext data. To access the encrypted
  counter, the patch uses a NULL data vector as plaintext to be
  "encrypted".
Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Add support for the Amlogic Meson SoCs hardware random generator.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

The __raw IO functions are not endian safe, so use the readl_relaxed
and writel_relaxed versions of these.
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

alloc_workqueue replaces deprecated create_workqueue().

The workqueue device_reset_wq has workitem &reset_data->reset_work per
adf_reset_dev_data. The workqueue  pf2vf_resp_wq is a workqueue for
PF2VF responses has workitem &pf2vf_resp->pf2vf_resp_work per pf2vf_resp.
The workqueue adf_vf_stop_wq is used to call adf_dev_stop()
asynchronously.

Dedicated workqueues have been used in all cases since the workitems
on the workqueues are involved in operation of crypto which can be used in
the IO path which is depended upon during memory reclaim. Hence,
WQ_MEM_RECLAIM has been set to gurantee forward progress under memory
pressure.
Since there are only a fixed number of work items, explicit concurrency
limit is unnecessary.
Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

This will allow IPSEC on SEC1
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

SEC1 doesn't have IPSEC_ESP descriptor type but it is able to perform
IPSEC using HMAC_SNOOP_NO_AFEU, which is also existing on SEC2
In order to be able to define descriptors templates for SEC1 without
breaking SEC2+, we have to give lower priority to HMAC_SNOOP_NO_AFEU
so that SEC2+ selects IPSEC_ESP and not HMAC_SNOOP_NO_AFEU which is
less performant.

This is done by adding a priority field in the template. If the field
is 0, we use the default priority, otherwise we used the one in the
field.
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

This patchs enhances the IPSEC_ESP related functions for them to
also supports the same operations with descriptor type
HMAC_SNOOP_NO_AFEU.

The differences between the two descriptor types are:
* pointeurs 2 and 3 are swaped (Confidentiality key and
    Primary EU Context IN)
* HMAC_SNOOP_NO_AFEU has CICV out in pointer 6
* HMAC_SNOOP_NO_AFEU has no primary EU context out so we get it
from the end of data out
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

In preparation of IPSEC for SEC1, first step is to make the mapping
helpers more generic so that they can also be used by AEAD functions.

First, the functions are moved before IPSEC functions in talitos.c

talitos_sg_unmap() and unmap_sg_talitos_ptr() are merged as they
are quite similar, the second one handling the SEC1 case an calling
the first one for SEC2

map_sg_in_talitos_ptr() and map_sg_out_talitos_ptr() are merged
into talitos_sg_map() and enhenced to support offseted zones
as used for AEAD. The actual mapping is now performed outside that
helper. The DMA sync is also done outside to not make it several
times.

talitos_edesc_alloc() size calculation are fixed to also take into
account AEAD specific parts also for SEC1
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

In order to be able to use the mapping/unmapping helpers for IPSEC
it needs to be move upper in the file
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Use helper for all modifications to talitos_ptr in preparation to
the implementation of AEAD for SEC1

to_talitos_ptr_extent_clear() has been removed in favor of
to_talitos_ptr_ext_set() to set any value and
to_talitos_ptr_ext_or() to or the extent field with a value
name has been shorten to help keeping single lines of 80 chars
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

LS1043A has a SEC v5.4 security engine.
For now don't add rtic or sec_mon subnodes, since these features
haven't been tested yet.
Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

The first read on an Alea takes about 1.8 seconds, more than the
timeout value waiting for the read.  As a consequence, later URB reuse
causes the warning given below.  To avoid this, we increase the wait
time for the first read on the Alea.

[   78.293247] WARNING: CPU: 3 PID: 1892 at drivers/usb/core/urb.c:338 usb_submit_urb+0x2b4/0x580 [usbcore]
[   78.293250] URB ffff8802135be3c0 submitted while active
[   78.293252] Modules linked in: chaoskey(+) rng_core rfcomm binfmt_misc bnep cfg80211 nfsd auth_rpcgss oid_registry nfs_acl nfs lockd grace fscache sunrpc bridge stp llc tun snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic iTCO_wdt iTCO_vendor_support nls_utf8 nls_cp437 vfat fat intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel efi_pstore kvm irqbypass pcspkr btusb btrtl btbcm btintel uvcvideo joydev bluetooth videobuf2_vmalloc videobuf2_memops efivars videobuf2_v4l2 serio_raw i2c_i801 videobuf2_core videodev cdc_mbim media lpc_ich shpchp mfd_core cdc_ncm usbnet mii cdc_wdm cdc_acm evdev snd_hda_intel snd_hda_codec snd_hwdep snd_hda_core i915 snd_pcm snd_timer i2c_algo_bit drm_kms_helper wmi thinkpad_acpi drm nvram mei_me mei snd soundcore rfkill ac battery i2c_core
[   78.293335]  video button tpm_tis tpm fuse parport_pc ppdev lp parport autofs4 ext4 crc16 jbd2 mbcache algif_skcipher af_alg hid_generic usbhid hid dm_crypt dm_mod sg sr_mod cdrom sd_mod crct10dif_pclmul crc32_pclmul crc32c_intel jitterentropy_rng sha256_generic hmac drbg aesni_intel xhci_pci aes_x86_64 ahci glue_helper xhci_hcd ehci_pci lrw libahci gf128mul ablk_helper cryptd libata sdhci_pci psmouse sdhci scsi_mod ehci_hcd mmc_core usbcore usb_common thermal
[   78.293402] CPU: 3 PID: 1892 Comm: hwrng Not tainted 4.7.0-rc1-linux-14+ #16
[   78.293405] Hardware name: LENOVO 232577G/232577G, BIOS G2ET92WW (2.52 ) 02/22/2013
[   78.293408]  0000000000000000 ffffffff812dfa0f ffff8801fa5b3d68 0000000000000000
[   78.293413]  ffffffff81072224 ffff8802135be3c0 ffff8801fa5b3db8 ffff880212e44210
[   78.293418]  0000000000000040 ffff880209fb32c0 ffff880212e44200 ffffffff8107228f
[   78.293422] Call Trace:
[   78.293432]  [<ffffffff812dfa0f>] ? dump_stack+0x5c/0x7d
[   78.293437]  [<ffffffff81072224>] ? __warn+0xc4/0xe0
[   78.293441]  [<ffffffff8107228f>] ? warn_slowpath_fmt+0x4f/0x60
[   78.293451]  [<ffffffff810a46a2>] ? enqueue_task_fair+0xcd2/0x1260
[   78.293463]  [<ffffffffa001ec54>] ? usb_submit_urb+0x2b4/0x580 [usbcore]
[   78.293474]  [<ffffffff8140c2e5>] ? __pm_runtime_resume+0x55/0x70
[   78.293484]  [<ffffffffa0825212>] ? _chaoskey_fill+0x132/0x250 [chaoskey]
[   78.293485] usbcore: registered new interface driver chaoskey
[   78.293493]  [<ffffffff810aed50>] ? wait_woken+0x90/0x90
[   78.293500]  [<ffffffffa06448c0>] ? devm_hwrng_register+0x80/0x80 [rng_core]
[   78.293505]  [<ffffffffa0825907>] ? chaoskey_rng_read+0x127/0x140 [chaoskey]
[   78.293511]  [<ffffffffa06448c0>] ? devm_hwrng_register+0x80/0x80 [rng_core]
[   78.293515]  [<ffffffffa064492e>] ? hwrng_fillfn+0x6e/0x120 [rng_core]
[   78.293520]  [<ffffffff8108fb5f>] ? kthread+0xcf/0xf0
[   78.293529]  [<ffffffff81596d5f>] ? ret_from_fork+0x1f/0x40
[   78.293535]  [<ffffffff8108fa90>] ? kthread_park+0x50/0x50
Signed-off-by: Bob Ham <bob.ham@collabora.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Adds support for the Araneus Alea I USB hardware Random Number
Generator which is interfaced with in exactly the same way as the
Altus Metrum ChaosKey.  We just add the appropriate device ID and
modify the config help text.
Signed-off-by: Bob Ham <bob.ham@collabora.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Move hash to 0xe to free up the space for acomp/scomp
Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Remove unused header cpumask.h from crypto/ablkcipher.c.
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Algorithms can be registered only once. So skip registration of
algorithms if already registered (i.e. in case we have two AES cores
in the system.)
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Currently there are several checkpatch warnings in the sha1_mb.c file:
'WARNING: line over 80 characters' in the sha1_mb.c file. Also, the
syntax of some multi-line comments are not correct. This patch fixes
these issues.
Signed-off-by: Megha Dey <megha.dey@linux.intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

The CTR DRBG code always set the key for each sym cipher invocation even
though the key has not been changed.

The patch ensures that the setkey is only invoked when a new key is
generated by the DRBG.

With this patch, the CTR DRBG performance increases by more than 150%.
Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Bring some consistency by:
1. Replacing fixed-space indentation of structure members with just
   tabs.
2. Remove indentation in declaration of local variable between type and
   name.  Driver was mixing usage of such indentation and lack of it.
   When removing indentation, reorder variables in
   reversed-christmas-tree order with first variables being initialized
   ones.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Vladimir Zapolskiy <vz@mleia.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Read the requested number of data from the fifo
Signed-off-by: Yendapally Reddy Dhananjaya Reddy <yendapally.reddy@broadcom.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Add support for the random number generator to the Northstar Plus
SoC device tree.
Signed-off-by: Yendapally Reddy Dhananjaya Reddy <yendapally.reddy@broadcom.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

This supports the random number generator available in NSP SoC.
Masks the rng interrupt for NSP.
Signed-off-by: Yendapally Reddy Dhananjaya Reddy <yendapally.reddy@broadcom.com>
Acked-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>