Eric Biggers [Tue, 7 Nov 2017 22:15:27 +0000 (14:15 -0800)]
lib/mpi: call cond_resched() from mpi_powm() loop
On a non-preemptible kernel, if KEYCTL_DH_COMPUTE is called with the
largest permitted inputs (16384 bits), the kernel spends 10+ seconds
doing modular exponentiation in mpi_powm() without rescheduling. If all
threads do it, it locks up the system. Moreover, it can cause
rcu_sched-stall warnings.
Notwithstanding the insanity of doing this calculation in kernel mode
rather than in userspace, fix it by calling cond_resched() as each bit
from the exponent is processed. It's still noninterruptible, but at
least it's preemptible now.
Do the cond_resched() once per bit rather than once per MPI limb because
each limb might still easily take 100+ milliseconds on slow CPUs.
Cc: <stable@vger.kernel.org> # v4.12+
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Lionel Debieve [Mon, 6 Nov 2017 22:41:52 +0000 (23:41 +0100)]
crypto: stm32/hash - Fix return issue on update
When data append reached the threshold for processing,
we must inform that processing is on going to wait before
managing the next request.
Signed-off-by: Lionel Debieve <lionel.debieve@st.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Eric Biggers [Mon, 6 Nov 2017 02:30:48 +0000 (18:30 -0800)]
crypto: dh - Remove pointless checks for NULL 'p' and 'g'
Neither 'p' nor 'g' can be NULL, as they were unpacked using
crypto_dh_decode_key(). And it makes no sense for them to be optional.
So remove the NULL checks that were copy-and-pasted into both modules.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Reviewed-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Eric Biggers [Mon, 6 Nov 2017 02:30:47 +0000 (18:30 -0800)]
crypto: qat - Clean up error handling in qat_dh_set_secret()
Update the error handling in qat_dh_set_secret() to mirror
dh_set_secret(). The new version is less error-prone because freeing
memory and setting the pointers to NULL is now only done in one place.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Eric Biggers [Mon, 6 Nov 2017 02:30:46 +0000 (18:30 -0800)]
crypto: dh - Don't permit 'key' or 'g' size longer than 'p'
The "qat-dh" DH implementation assumes that 'key' and 'g' can be copied
into a buffer with size 'p_size'. However it was never checked that
that was actually the case, which most likely allowed users to cause a
buffer underflow via KEYCTL_DH_COMPUTE.
Fix this by updating crypto_dh_decode_key() to verify this precondition
for all DH implementations.
Fixes: c9839143ebbf ("crypto: qat - Add DH support")
Cc: <stable@vger.kernel.org> # v4.8+
Signed-off-by: Eric Biggers <ebiggers@google.com>
Reviewed-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Eric Biggers [Mon, 6 Nov 2017 02:30:45 +0000 (18:30 -0800)]
crypto: dh - Don't permit 'p' to be 0
If 'p' is 0 for the software Diffie-Hellman implementation, then
dh_max_size() returns 0. In the case of KEYCTL_DH_COMPUTE, this causes
ZERO_SIZE_PTR to be passed to sg_init_one(), which with
CONFIG_DEBUG_SG=y triggers the 'BUG_ON(!virt_addr_valid(buf));' in
sg_set_buf().
Fix this by making crypto_dh_decode_key() reject 0 for 'p'. p=0 makes
no sense for any DH implementation because 'p' is supposed to be a prime
number. Moreover, 'mod 0' is not mathematically defined.
Bug report:
kernel BUG at ./include/linux/scatterlist.h:140!
invalid opcode: 0000 [#1] SMP KASAN
CPU: 0 PID: 27112 Comm: syz-executor2 Not tainted
4.14.0-rc7-00010-gf5dbb5d0ce32-dirty #7
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.3-20171021_125229-anatol 04/01/2014
task:
ffff88006caac0c0 task.stack:
ffff88006c7c8000
RIP: 0010:sg_set_buf include/linux/scatterlist.h:140 [inline]
RIP: 0010:sg_init_one+0x1b3/0x240 lib/scatterlist.c:156
RSP: 0018:
ffff88006c7cfb08 EFLAGS:
00010216
RAX:
0000000000010000 RBX:
ffff88006c7cfe30 RCX:
00000000000064ee
RDX:
ffffffff81cf64c3 RSI:
ffffc90000d72000 RDI:
ffffffff92e937e0
RBP:
ffff88006c7cfb30 R08:
ffffed000d8f9fab R09:
ffff88006c7cfd30
R10:
0000000000000005 R11:
ffffed000d8f9faa R12:
ffff88006c7cfd30
R13:
0000000000000000 R14:
0000000000000010 R15:
ffff88006c7cfc50
FS:
00007fce190fa700(0000) GS:
ffff88003ea00000(0000) knlGS:
0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
CR2:
00007fffc6b33db8 CR3:
000000003cf64000 CR4:
00000000000006f0
Call Trace:
__keyctl_dh_compute+0xa95/0x19b0 security/keys/dh.c:360
keyctl_dh_compute+0xac/0x100 security/keys/dh.c:434
SYSC_keyctl security/keys/keyctl.c:1745 [inline]
SyS_keyctl+0x72/0x2c0 security/keys/keyctl.c:1641
entry_SYSCALL_64_fastpath+0x1f/0xbe
RIP: 0033:0x4585c9
RSP: 002b:
00007fce190f9bd8 EFLAGS:
00000216 ORIG_RAX:
00000000000000fa
RAX:
ffffffffffffffda RBX:
0000000000738020 RCX:
00000000004585c9
RDX:
000000002000d000 RSI:
0000000020000ff4 RDI:
0000000000000017
RBP:
0000000000000046 R08:
0000000020008000 R09:
0000000000000000
R10:
0000000000000000 R11:
0000000000000216 R12:
00007fff6e610cde
R13:
00007fff6e610cdf R14:
00007fce190fa700 R15:
0000000000000000
Code: 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 33 5b 45 89 6c 24 14 41 5c 41 5d 41 5e 41 5f 5d c3 e8 fd 8f 68 ff <0f> 0b e8 f6 8f 68 ff 0f 0b e8 ef 8f 68 ff 0f 0b e8 e8 8f 68 ff 20
RIP: sg_set_buf include/linux/scatterlist.h:140 [inline] RSP:
ffff88006c7cfb08
RIP: sg_init_one+0x1b3/0x240 lib/scatterlist.c:156 RSP:
ffff88006c7cfb08
Fixes: 802c7f1c84e4 ("crypto: dh - Add DH software implementation")
Cc: <stable@vger.kernel.org> # v4.8+
Reviewed-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Eric Biggers [Mon, 6 Nov 2017 02:30:44 +0000 (18:30 -0800)]
crypto: dh - Fix double free of ctx->p
When setting the secret with the software Diffie-Hellman implementation,
if allocating 'g' failed (e.g. if it was longer than
MAX_EXTERN_MPI_BITS), then 'p' was freed twice: once immediately, and
once later when the crypto_kpp tfm was destroyed.
Fix it by using dh_free_ctx() (renamed to dh_clear_ctx()) in the error
paths, as that correctly sets the pointers to NULL.
KASAN report:
MPI: mpi too large (32760 bits)
==================================================================
BUG: KASAN: use-after-free in mpi_free+0x131/0x170
Read of size 4 at addr
ffff88006c7cdf90 by task reproduce_doubl/367
CPU: 1 PID: 367 Comm: reproduce_doubl Not tainted
4.14.0-rc7-00040-g05298abde6fe #7
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
Call Trace:
dump_stack+0xb3/0x10b
? mpi_free+0x131/0x170
print_address_description+0x79/0x2a0
? mpi_free+0x131/0x170
kasan_report+0x236/0x340
? akcipher_register_instance+0x90/0x90
__asan_report_load4_noabort+0x14/0x20
mpi_free+0x131/0x170
? akcipher_register_instance+0x90/0x90
dh_exit_tfm+0x3d/0x140
crypto_kpp_exit_tfm+0x52/0x70
crypto_destroy_tfm+0xb3/0x250
__keyctl_dh_compute+0x640/0xe90
? kasan_slab_free+0x12f/0x180
? dh_data_from_key+0x240/0x240
? key_create_or_update+0x1ee/0xb20
? key_instantiate_and_link+0x440/0x440
? lock_contended+0xee0/0xee0
? kfree+0xcf/0x210
? SyS_add_key+0x268/0x340
keyctl_dh_compute+0xb3/0xf1
? __keyctl_dh_compute+0xe90/0xe90
? SyS_add_key+0x26d/0x340
? entry_SYSCALL_64_fastpath+0x5/0xbe
? trace_hardirqs_on_caller+0x3f4/0x560
SyS_keyctl+0x72/0x2c0
entry_SYSCALL_64_fastpath+0x1f/0xbe
RIP: 0033:0x43ccf9
RSP: 002b:
00007ffeeec96158 EFLAGS:
00000246 ORIG_RAX:
00000000000000fa
RAX:
ffffffffffffffda RBX:
000000000248b9b9 RCX:
000000000043ccf9
RDX:
00007ffeeec96170 RSI:
00007ffeeec96160 RDI:
0000000000000017
RBP:
0000000000000046 R08:
0000000000000000 R09:
0248b9b9143dc936
R10:
0000000000001000 R11:
0000000000000246 R12:
0000000000000000
R13:
0000000000409670 R14:
0000000000409700 R15:
0000000000000000
Allocated by task 367:
save_stack_trace+0x16/0x20
kasan_kmalloc+0xeb/0x180
kmem_cache_alloc_trace+0x114/0x300
mpi_alloc+0x4b/0x230
mpi_read_raw_data+0xbe/0x360
dh_set_secret+0x1dc/0x460
__keyctl_dh_compute+0x623/0xe90
keyctl_dh_compute+0xb3/0xf1
SyS_keyctl+0x72/0x2c0
entry_SYSCALL_64_fastpath+0x1f/0xbe
Freed by task 367:
save_stack_trace+0x16/0x20
kasan_slab_free+0xab/0x180
kfree+0xb5/0x210
mpi_free+0xcb/0x170
dh_set_secret+0x2d7/0x460
__keyctl_dh_compute+0x623/0xe90
keyctl_dh_compute+0xb3/0xf1
SyS_keyctl+0x72/0x2c0
entry_SYSCALL_64_fastpath+0x1f/0xbe
Fixes: 802c7f1c84e4 ("crypto: dh - Add DH software implementation")
Cc: <stable@vger.kernel.org> # v4.8+
Signed-off-by: Eric Biggers <ebiggers@google.com>
Reviewed-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Florian Fainelli [Wed, 1 Nov 2017 23:20:06 +0000 (16:20 -0700)]
hwrng: iproc-rng200 - Add support for BCM7278
BCM7278 features a RNG200 hardware random number generator block, add
support for this chip by matching the chip-specific compatible string
and extending the Kconfig dependencies to allow building on ARCH_BRCMSTB
(base platform for 7278).
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Florian Fainelli [Wed, 1 Nov 2017 23:20:05 +0000 (16:20 -0700)]
dt-bindings: rng: Document BCM7278 RNG200 compatible
BCM7278 includes a RGN200 hardware random number generator, document the
compatible string for that version of the IP.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Gustavo A. R. Silva [Fri, 3 Nov 2017 16:58:23 +0000 (11:58 -0500)]
crypto: chcr - Replace _manual_ swap with swap macro
Make use of the swap macro and remove unnecessary variable temp.
This makes the code easier to read and maintain.
This code was detected with the help of Coccinelle.
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Boris BREZILLON [Fri, 3 Nov 2017 16:52:01 +0000 (17:52 +0100)]
crypto: marvell - Add a NULL entry at the end of mv_cesa_plat_id_table[]
struct platform_device_id should be NULL terminated to let the core detect
where the last entry is.
Fixes: 07c50a8be41a ("crypto: marvell - Add a platform_device_id table")
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Jim Quigley [Fri, 3 Nov 2017 09:57:21 +0000 (09:57 +0000)]
hwrng: virtio - Virtio RNG devices need to be re-registered after suspend/resume
The patch for
commit:
5c06273401f2eb7b290cadbae18ee00f8f65e893
Author: Amit Shah <amit.shah@redhat.com>
Date: Sun Jul 27 07:34:01 2014 +0930
virtio: rng: delay hwrng_register() till driver is ready
moved the call to hwrng_register() out of the probe routine into the scan
routine. We need to call hwrng_register() after a suspend/restore cycle
to re-register the device, but the scan function is not invoked for the
restore. Add the call to hwrng_register() to virtio_restore().
Reviewed-by: Liam Merwick <Liam.Merwick@oracle.com>
Signed-off-by: Jim Quigley <Jim.Quigley@oracle.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Tudor-Dan Ambarus [Thu, 2 Nov 2017 15:12:25 +0000 (17:12 +0200)]
crypto: atmel - remove empty functions
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>
Tudor-Dan Ambarus [Thu, 2 Nov 2017 14:46:47 +0000 (16:46 +0200)]
crypto: ecdh - remove empty exit()
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 this pointer is not NULL before using it, we are safe to
remove the function.
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Salvatore Benedetto [Thu, 2 Nov 2017 09:09:06 +0000 (09:09 +0000)]
MAINTAINERS: update maintainer for qat
Removing myself as I'm not longer following QAT development.
Signed-off-by: Salvatore Benedetto <salvatore.benedetto@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Horia Geantă [Wed, 1 Nov 2017 07:13:11 +0000 (09:13 +0200)]
crypto: caam - remove unused param of ctx_map_to_sec4_sg()
ctx_map_to_sec4_sg() function, added in
commit
045e36780f115 ("crypto: caam - ahash hmac support")
has never used the "desc" parameter, so let's drop it.
Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Horia Geantă [Wed, 1 Nov 2017 07:13:10 +0000 (09:13 +0200)]
crypto: caam - remove unneeded edesc zeroization
Extended descriptor allocation has been changed by
commit
dde20ae9d6383 ("crypto: caam - Change kmalloc to kzalloc to avoid residual data")
to provide zeroized memory, meaning we no longer have to sanitize
its members - edesc->src_nents and edesc->dst_dma.
Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Romain Izard [Tue, 31 Oct 2017 15:25:24 +0000 (16:25 +0100)]
crypto: atmel-aes - Reset the controller before each use
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>
Romain Izard [Tue, 31 Oct 2017 15:25:23 +0000 (16:25 +0100)]
crypto: atmel-aes - properly set IV after {en,de}crypt
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>
PrasannaKumar Muralidharan [Fri, 27 Oct 2017 17:04:04 +0000 (22:34 +0530)]
hwrng: core - Reset user selected rng by writing "" to rng_current
User is able to select a chosen rng by writing its name to rng_current
but there is no way to reset it without unbinding the rng. Let user
write "" to rng_current and delesect the chosen rng.
Signed-off-by: PrasannaKumar Muralidharan <prasannatsmkumar@gmail.com>
reviewed-by: Harald Freudenberger <freude@linux.vnet.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Kamil Konieczny [Wed, 25 Oct 2017 15:27:35 +0000 (17:27 +0200)]
crypto: s5p-sss - Add HASH support for Exynos
Add support for MD5, SHA1, SHA256 hash algorithms for Exynos HW.
It uses the crypto framework asynchronous hash api.
It is based on omap-sham.c driver.
S5P has some HW differencies and is not implemented.
Modifications in s5p-sss:
- Add hash supporting structures and functions.
- Modify irq handler to handle both aes and hash signals.
- Resize resource end in probe if EXYNOS_HASH is enabled in
Kconfig.
- Add new copyright line and new author.
- Tested on Odroid-U3 with Exynos 4412 CPU, kernel 4.13-rc6
with crypto run-time self test testmgr
and with tcrypt module with: modprobe tcrypt sec=1 mode=N
where N=402, 403, 404 (MD5, SHA1, SHA256).
Modifications in drivers/crypto/Kconfig:
- Add new CRYPTO_DEV_EXYNOS_HASH, depend on !EXYNOS_RNG
and CRYPTO_DEV_S5P
- Select sw algorithms MD5, SHA1 and SHA256 in EXYNOS_HASH
as they are needed for fallback.
Acked-by: Vladimir Zapolskiy <vz@mleia.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Kamil Konieczny <k.konieczny@partner.samsung.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Kamil Konieczny [Wed, 25 Oct 2017 15:27:34 +0000 (17:27 +0200)]
crypto: s5p-sss - Change spaces to tabs
Change #define lines to use tabs consistently.
Acked-by: Vladimir Zapolskiy <vz@mleia.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Kamil Konieczny <k.konieczny@partner.samsung.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Kees Cook [Wed, 25 Oct 2017 10:18:42 +0000 (03:18 -0700)]
crypto: drivers - Convert timers to use timer_setup()
In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly.
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: Lars Persson <lars.persson@axis.com>
Cc: Niklas Cassel <niklas.cassel@axis.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jamie Iles <jamie@jamieiles.com>
Cc: linux-arm-kernel@axis.com
Cc: linux-crypto@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Jamie Iles <jamie@jamieiles.com>
Acked-by: Lars Persson <lars.persson@axis.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Horia Geantă [Tue, 24 Oct 2017 06:27:31 +0000 (09:27 +0300)]
crypto: caam/qi - abort algorithm setup on DPAA2 parts
caam/qi frontend (i.e. caamalg_qi) mustn't be used in case it runs on a
DPAA2 part (this could happen when using a multiplatform kernel).
Fixes: 297b9cebd2fc ("crypto: caam/jr - add support for DPAA2 parts")
Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Radu Alexe [Tue, 24 Oct 2017 06:27:30 +0000 (09:27 +0300)]
crypto: caam - fix incorrect define
Fixes: 3ebfa92f49a6 ("crypto: caam - Add new macros for building extended SEC descriptors (> 64 words)")
Signed-off-by: Radu Alexe <radu.alexe@nxp.com>
Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Tudor-Dan Ambarus [Mon, 23 Oct 2017 15:34:41 +0000 (18:34 +0300)]
crypto: atmel - remove useless irq init
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>
Tudor-Dan Ambarus [Mon, 23 Oct 2017 15:34:39 +0000 (18:34 +0300)]
crypto: atmel - return appropriate error code
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>
Gilad Ben-Yossef [Wed, 18 Oct 2017 07:00:52 +0000 (08:00 +0100)]
crypto: doc - adapt api sample to use async. op wait
The code sample is waiting for an async. crypto op completion.
Adapt sample to use the new generic infrastructure to do the same.
This also fixes a possible data coruption bug created by the
use of wait_for_completion_interruptible() without dealing
correctly with an interrupt aborting the wait prior to the
async op finishing.
Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Gilad Ben-Yossef [Wed, 18 Oct 2017 07:00:51 +0000 (08:00 +0100)]
crypto: mediatek - move to generic async completion
The mediatek driver starts several async crypto ops and waits for their
completions. Move it over to generic code doing the same.
Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Acked-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Gilad Ben-Yossef [Wed, 18 Oct 2017 07:00:50 +0000 (08:00 +0100)]
crypto: qce - move to generic async completion
The qce driver starts several async crypto ops and waits for their
completions. Move it over to generic code doing the same.
Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Gilad Ben-Yossef [Wed, 18 Oct 2017 07:00:49 +0000 (08:00 +0100)]
crypto: talitos - move to generic async completion
The talitos driver starts several async crypto ops and waits for their
completions. Move it over to generic code doing the same.
Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Tested-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Gilad Ben-Yossef [Wed, 18 Oct 2017 07:00:48 +0000 (08:00 +0100)]
crypto: tcrypt - move to generic async completion
tcrypt starts several async crypto ops and waits for their completions.
Move it over to generic code doing the same.
Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Gilad Ben-Yossef [Wed, 18 Oct 2017 07:00:47 +0000 (08:00 +0100)]
ima: move to generic async completion
ima starts several async crypto ops and waits for their completions.
Move it over to generic code doing the same.
Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Acked-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Gilad Ben-Yossef [Wed, 18 Oct 2017 07:00:46 +0000 (08:00 +0100)]
cifs: move to generic async completion
cifs starts an async. crypto op and waits for their completion.
Move it over to generic code doing the same.
Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Acked-by: Pavel Shilovsky <pshilov@microsoft.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Gilad Ben-Yossef [Wed, 18 Oct 2017 07:00:45 +0000 (08:00 +0100)]
dm: move dm-verity to generic async completion
dm-verity is starting async. crypto ops and waiting for them to complete.
Move it over to generic code doing the same.
This also avoids a future potential data coruption bug created
by the use of wait_for_completion_interruptible() without dealing
correctly with an interrupt aborting the wait prior to the
async op finishing, should this code ever move to a context
where signals are not masked.
Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
CC: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Gilad Ben-Yossef [Wed, 18 Oct 2017 07:00:44 +0000 (08:00 +0100)]
fscrypt: move to generic async completion
fscrypt starts several async. crypto ops and waiting for them to
complete. Move it over to generic code doing the same.
Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Gilad Ben-Yossef [Wed, 18 Oct 2017 07:00:43 +0000 (08:00 +0100)]
crypto: testmgr - move to generic async completion
testmgr is starting async. crypto ops and waiting for them to complete.
Move it over to generic code doing the same.
This also provides a test of the generic crypto async. wait code.
Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Gilad Ben-Yossef [Wed, 18 Oct 2017 07:00:42 +0000 (08:00 +0100)]
crypto: gcm - move to generic async completion
gcm is starting an async. crypto op and waiting for it complete.
Move it over to generic code doing the same.
Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Gilad Ben-Yossef [Wed, 18 Oct 2017 07:00:41 +0000 (08:00 +0100)]
crypto: drbg - move to generic async completion
DRBG is starting an async. crypto op and waiting for it complete.
Move it over to generic code doing the same.
The code now also passes CRYPTO_TFM_REQ_MAY_SLEEP flag indicating
crypto request memory allocation may use GFP_KERNEL which should
be perfectly fine as the code is obviously sleeping for the
completion of the request any way.
Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Gilad Ben-Yossef [Wed, 18 Oct 2017 07:00:40 +0000 (08:00 +0100)]
crypto: move pub key to generic async completion
public_key_verify_signature() is starting an async crypto op and
waiting for it to complete. Move it over to generic code doing
the same.
Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Gilad Ben-Yossef [Wed, 18 Oct 2017 07:00:39 +0000 (08:00 +0100)]
crypto: algif - move to generic async completion
algif starts several async crypto ops and waits for their completion.
Move it over to generic code doing the same.
Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Gilad Ben-Yossef [Wed, 18 Oct 2017 07:00:38 +0000 (08:00 +0100)]
crypto: introduce crypto wait for async op
Invoking a possibly async. crypto op and waiting for completion
while correctly handling backlog processing is a common task
in the crypto API implementation and outside users of it.
This patch adds a generic implementation for doing so in
preparation for using it across the board instead of hand
rolled versions.
Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
CC: Eric Biggers <ebiggers3@gmail.com>
CC: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Gilad Ben-Yossef [Wed, 18 Oct 2017 07:00:37 +0000 (08:00 +0100)]
crypto: marvell/cesa - remove redundant backlog checks on EBUSY
Now that -EBUSY return code only indicates backlog queueing
we can safely remove the now redundant check for the
CRYPTO_TFM_REQ_MAY_BACKLOG flag when -EBUSY is returned.
Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Gilad Ben-Yossef [Wed, 18 Oct 2017 07:00:36 +0000 (08:00 +0100)]
crypto: remove redundant backlog checks on EBUSY
Now that -EBUSY return code only indicates backlog queueing
we can safely remove the now redundant check for the
CRYPTO_TFM_REQ_MAY_BACKLOG flag when -EBUSY is returned.
Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Gilad Ben-Yossef [Wed, 18 Oct 2017 07:00:35 +0000 (08:00 +0100)]
net: use -ENOSPC for transient busy indication
Replace -EBUSY with -ENOSPC when handling transient busy
indication in the absence of backlog.
Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Gilad Ben-Yossef [Wed, 18 Oct 2017 07:00:34 +0000 (08:00 +0100)]
crypto: ccp - use -ENOSPC for transient busy indication
Replace -EBUSY with -ENOSPC when reporting transient busy
indication in the absence of backlog.
Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Reviewed-by: Gary R Hook <gary.hook@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Gilad Ben-Yossef [Wed, 18 Oct 2017 07:00:33 +0000 (08:00 +0100)]
crypto: change transient busy return code to -ENOSPC
The crypto API was using the -EBUSY return value to indicate
both a hard failure to submit a crypto operation into a
transformation provider when the latter was busy and the backlog
mechanism was not enabled as well as a notification that the
operation was queued into the backlog when the backlog mechanism
was enabled.
Having the same return code indicate two very different conditions
depending on a flag is both error prone and requires extra runtime
check like the following to discern between the cases:
if (err == -EINPROGRESS ||
(err == -EBUSY && (ahash_request_flags(req) &
CRYPTO_TFM_REQ_MAY_BACKLOG)))
This patch changes the return code used to indicate a crypto op
failed due to the transformation provider being transiently busy
to -ENOSPC.
Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Kees Cook [Mon, 16 Oct 2017 23:38:34 +0000 (16:38 -0700)]
hwrng: xgene - Convert timers to use timer_setup()
In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly.
Cc: Matt Mackall <mpm@selenic.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: linux-crypto@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Herbert Xu [Fri, 3 Nov 2017 14:10:18 +0000 (22:10 +0800)]
Merge git://git./linux/kernel/git/torvalds/linux
Merge 4.14-rc3 in order to pick up the new timer_setup function.
Paulo Flabiano Smorigo [Mon, 16 Oct 2017 22:54:19 +0000 (20:54 -0200)]
crypto: vmx - Use skcipher for ctr fallback
Signed-off-by: Paulo Flabiano Smorigo <pfsmorigo@linux.vnet.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Boris BREZILLON [Fri, 13 Oct 2017 13:30:32 +0000 (15:30 +0200)]
crypto: marvell - Switch cipher algs to the skcipher interface
crypto_alg is not supposed to be directly implemented by crypto engine
driver. Drivers should instead implement specialized interfaces like
ahash_alg or skcipher_alg.
Migrate to all cipher algorithms to the skcipher_alg interface. While at
it, get rid of all references to ablkcipher including in internal struct
or function names.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Horia Geantă [Fri, 13 Oct 2017 12:01:23 +0000 (15:01 +0300)]
MAINTAINERS: update caam crypto driver maintainers list
Dan steps down as caam maintainer, being replaced by Aymen.
Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Gustavo A. R. Silva [Thu, 12 Oct 2017 22:55:29 +0000 (17:55 -0500)]
crypto: qat - mark expected switch fall-throughs in qat_uclo
In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Colin Ian King [Thu, 12 Oct 2017 17:04:56 +0000 (18:04 +0100)]
crypto: qat - remove unused and redundant pointer vf_info
The pointer vf_info is being assigned but never read, it is redundant
and therefore can be removed.
Cleans up clang warning: Value stored to 'vf_info' is never read
Fixes: ed8ccaef52fa ("crypto: qat - Add support for SRIOV")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Colin Ian King [Thu, 12 Oct 2017 16:55:41 +0000 (17:55 +0100)]
crypto: ccp - remove unused variable qim
Variable qim is assigned but never read, it is redundant and can
be removed.
Cleans up clang warning: Value stored to 'qim' is never read
Fixes: 4b394a232df7 ("crypto: ccp - Let a v5 CCP provide the same function as v3")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Gary R Hook <gary.hook@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Colin Ian King [Thu, 12 Oct 2017 16:44:06 +0000 (17:44 +0100)]
crypto: cavium - clean up clang warning on unread variable offset
The variable offset is being assigned and not being used; it should
be passed as the 2nd argument to call to function nitrox_write_csr
but has been omitted. Fix this.
Cleans up clang warning: Value stored to 'offset' is never read
Fixes: 14fa93cdcd9b ("crypto: cavium - Add support for CNN55XX adapters.")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Boris BREZILLON [Wed, 11 Oct 2017 13:16:19 +0000 (15:16 +0200)]
crypto: marvell - Remove the old mv_cesa driver
All defconfigs selecting the old driver have been patched to select
the new one instead. We can now remove the old driver along with the
allhwsupports module parameter in the new driver that was used to
check whether the new driver was allowed to take control of the CESA
engine or not.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Boris BREZILLON [Wed, 11 Oct 2017 13:16:18 +0000 (15:16 +0200)]
ARM: configs: Stop selecting the old CESA driver
A new driver has been developed to support the CESA IP. Switch
remaining users of the old driver to the new driver in order to remove
the old one.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Boris BREZILLON [Wed, 11 Oct 2017 13:16:17 +0000 (15:16 +0200)]
crypto: marvell - Add a platform_device_id table
Add a platform_device_id table to allow using this driver on orion
platforms that have not been converted to DT.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Robert Baronescu [Tue, 10 Oct 2017 10:22:00 +0000 (13:22 +0300)]
crypto: tcrypt - fix buffer lengths in test_aead_speed()
Fix the way the length of the buffers used for
encryption / decryption are computed.
For e.g. in case of encryption, input buffer does not contain
an authentication tag.
Signed-off-by: Robert Baronescu <robert.baronescu@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Gustavo A. R. Silva [Mon, 9 Oct 2017 19:43:21 +0000 (14:43 -0500)]
crypto: tcrypt - mark expected switch fall-throughs in do_test()
In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: linux-crypto@vger.kernel.org
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Harsh Jain [Sun, 8 Oct 2017 08:07:24 +0000 (13:37 +0530)]
crypto: chelsio - Fix memory leak
Fix memory leak when device does not support crypto.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Harsh Jain <harsh@chelsio.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Harsh Jain [Sun, 8 Oct 2017 08:07:23 +0000 (13:37 +0530)]
crypto: chelsio - Move DMA un/mapping to chcr from lld cxgb4 driver
Allow chcr to do DMA mapping/Unmapping instead of lld cxgb4.
It moves "Copy AAD to dst buffer" requirement from driver to
firmware.
Signed-off-by: Harsh Jain <harsh@chelsio.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Harsh Jain [Sun, 8 Oct 2017 08:07:22 +0000 (13:37 +0530)]
crypto: chelsio - Remove allocation of sg list to implement 2K limit of dsgl header
Update DMA address index instead of allocating new sg list to impose 2k size limit for each entry.
Signed-off-by: Harsh Jain <harsh@chelsio.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Harsh Jain [Sun, 8 Oct 2017 08:07:21 +0000 (13:37 +0530)]
crypto: chelsio - Use x8_ble gf multiplication to calculate IV.
gf128mul_x8_ble() will reduce gf Multiplication iteration by 8.
Signed-off-by: Harsh Jain <harsh@chelsio.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Harsh Jain [Sun, 8 Oct 2017 08:07:20 +0000 (13:37 +0530)]
crypto: gf128mul - The x8_ble multiplication functions
It multiply GF(2^128) elements in the ble format.
It will be used by chelsio driver to speed up gf multiplication.
Signed-off-by: Harsh Jain <harsh@chelsio.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Yeshaswi M R Gowda [Sun, 8 Oct 2017 08:07:19 +0000 (13:37 +0530)]
crypto: chelsio - Check error code with IS_ERR macro
Check and return proper error code.
Signed-off-by: Jitendra Lulla <jlulla@chelsio.com>
Signed-off-by: Harsh Jain <harsh@chelsio.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Yeshaswi M R Gowda [Sun, 8 Oct 2017 08:07:18 +0000 (13:37 +0530)]
crypto: chelsio - Remove unused parameter
Remove unused parameter sent to latest fw.
Signed-off-by: Harsh Jain <harsh@chelsio.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
LEROY Christophe [Fri, 6 Oct 2017 13:05:08 +0000 (15:05 +0200)]
crypto: talitos - avoid useless copy
This patch avoids copy of buffered data to hash from bufnext to buf
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
LEROY Christophe [Fri, 6 Oct 2017 13:05:06 +0000 (15:05 +0200)]
crypto: talitos - chain in buffered data for ahash on SEC1
SEC1 doesn't support S/G in descriptors so for hash operations,
the CPU has to build a buffer containing the buffered block and
the incoming data. This generates a lot of memory copies which
represents more than 50% of CPU time of a md5sum operation as
shown below with a 'perf record'.
|--86.24%-- kcapi_md_digest
| |
| |--86.18%-- _kcapi_common_vmsplice_chunk_fd
| | |
| | |--83.68%-- splice
| | | |
| | | |--83.59%-- ret_from_syscall
| | | | |
| | | | |--83.52%-- sys_splice
| | | | | |
| | | | | |--83.49%-- splice_from_pipe
| | | | | | |
| | | | | | |--83.04%-- __splice_from_pipe
| | | | | | | |
| | | | | | | |--80.67%-- pipe_to_sendpage
| | | | | | | | |
| | | | | | | | |--78.25%-- hash_sendpage
| | | | | | | | | |
| | | | | | | | | |--60.08%-- ahash_process_req
| | | | | | | | | | |
| | | | | | | | | | |--56.36%-- sg_copy_buffer
| | | | | | | | | | | |
| | | | | | | | | | | |--55.29%-- memcpy
| | | | | | | | | | | |
However, unlike SEC2+, SEC1 offers the possibility to chain
descriptors. It is therefore possible to build a first descriptor
pointing to the buffered data and a second descriptor pointing to
the incoming data, hence avoiding the memory copy to a single
buffer.
With this patch, the time necessary for a md5sum on a 90Mbytes file
is approximately 3 seconds. Without the patch it takes 6 seconds.
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
LEROY Christophe [Fri, 6 Oct 2017 13:05:04 +0000 (15:05 +0200)]
crypto: talitos - do hw_context DMA mapping outside the requests
At every request, we map and unmap the same hash hw_context.
This patch moves the dma mapping/unmapping in functions ahash_init()
and ahash_import().
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
LEROY Christophe [Fri, 6 Oct 2017 13:05:02 +0000 (15:05 +0200)]
crypto: talitos - DMA map key in setkey()
dma_map_single() is an heavy operation which doesn't need to
be done at each request as the key doesn't change.
Instead of DMA mapping the key at every request, this patch maps it
once in setkey()
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
LEROY Christophe [Fri, 6 Oct 2017 13:04:59 +0000 (15:04 +0200)]
crypto: talitos - simplify tests in ipsec_esp()
Do (desc->hdr & DESC_HDR_TYPE_IPSEC_ESP) only once.
Limit number of if/else paths
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
LEROY Christophe [Fri, 6 Oct 2017 13:04:57 +0000 (15:04 +0200)]
crypto: talitos - remove to_talitos_ptr_len()
to_talitos_ptr() and to_talitos_ptr_len() are always called together
in order to fully set a ptr, so lets merge them into a single
helper.
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
LEROY Christophe [Fri, 6 Oct 2017 13:04:55 +0000 (15:04 +0200)]
crypto: talitos - don't check the number of channels at each interrupt
The number of channels is known from the beginning, no need to
test it everytime.
This patch defines two additional done functions handling only channel 0.
Then the probe registers the correct one based on the number of channels.
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
LEROY Christophe [Fri, 6 Oct 2017 13:04:53 +0000 (15:04 +0200)]
crypto: talitos - use devm_ioremap()
Use devm_ioremap()
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
LEROY Christophe [Fri, 6 Oct 2017 13:04:51 +0000 (15:04 +0200)]
crypto: talitos - use of_property_read_u32()
Use of_property_read_u32() to simplify DT read
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
LEROY Christophe [Fri, 6 Oct 2017 13:04:49 +0000 (15:04 +0200)]
crypto: talitos - use devm_kmalloc()
Replace kmalloc() by devm_kmalloc()
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
LEROY Christophe [Fri, 6 Oct 2017 13:04:47 +0000 (15:04 +0200)]
crypto: talitos - declare local functions static
talitos_handle_buggy_hash() and talitos_sg_map() are only used
locally, make them static
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
LEROY Christophe [Fri, 6 Oct 2017 13:04:45 +0000 (15:04 +0200)]
crypto: talitos - zeroize the descriptor with memset()
This patch zeroize the descriptor at allocation using memset().
This has two advantages:
- It reduces the number of places where data has to be set to 0
- It avoids reading memory and loading the cache with data that
will be entirely replaced.
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
LEROY Christophe [Fri, 6 Oct 2017 13:04:43 +0000 (15:04 +0200)]
crypto: talitos - fix ctr-aes-talitos
ctr-aes-talitos test fails as follows on SEC2
[ 0.837427] alg: skcipher: Test 1 failed (invalid result) on encryption for ctr-aes-talitos
[ 0.845763]
00000000: 16 36 d5 ee 34 f8 06 25 d7 7f 8e 56 ca 88 43 45
[ 0.852345]
00000010: f9 3f f7 17 2a b2 12 23 30 43 09 15 82 dd e1 97
[ 0.858940]
00000020: a7 f7 32 b5 eb 25 06 13 9a ec f5 29 25 f8 4d 66
[ 0.865366]
00000030: b0 03 5b 8e aa 9a 42 b6 19 33 8a e2 9d 65 96 95
This patch fixes the descriptor type which is special for CTR AES
Fixes: 5e75ae1b3cef6 ("crypto: talitos - add new crypto modes")
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
LEROY Christophe [Fri, 6 Oct 2017 13:04:41 +0000 (15:04 +0200)]
crypto: talitos - fix use of sg_link_tbl_len
sg_link_tbl_len shall be used instead of cryptlen, otherwise
SECs which perform HW CICV verification will fail.
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
LEROY Christophe [Fri, 6 Oct 2017 13:04:39 +0000 (15:04 +0200)]
crypto: talitos - fix AEAD for sha224 on non sha224 capable chips
sha224 AEAD test fails with:
[ 2.803125] talitos
ff020000.crypto: DEUISR 0x00000000_00000000
[ 2.808743] talitos
ff020000.crypto: MDEUISR 0x80100000_00000000
[ 2.814678] talitos
ff020000.crypto: DESCBUF 0x20731f21_00000018
[ 2.820616] talitos
ff020000.crypto: DESCBUF 0x0628d64c_00000010
[ 2.826554] talitos
ff020000.crypto: DESCBUF 0x0631005c_00000018
[ 2.832492] talitos
ff020000.crypto: DESCBUF 0x0628d664_00000008
[ 2.838430] talitos
ff020000.crypto: DESCBUF 0x061b13a0_00000080
[ 2.844369] talitos
ff020000.crypto: DESCBUF 0x0631006c_00000080
[ 2.850307] talitos
ff020000.crypto: DESCBUF 0x0631006c_00000018
[ 2.856245] talitos
ff020000.crypto: DESCBUF 0x063100ec_00000000
[ 2.884972] talitos
ff020000.crypto: failed to reset channel 0
[ 2.890503] talitos
ff020000.crypto: done overflow, internal time out, or rngu error: ISR 0x20000000_00020000
[ 2.900652] alg: aead: encryption failed on test 1 for authenc-hmac-sha224-cbc-3des-talitos: ret=22
This is due to SHA224 not being supported by the HW. Allthough for
hash we are able to init the hash context by SW, it is not
possible for AEAD. Therefore SHA224 AEAD has to be deactivated.
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
LEROY Christophe [Fri, 6 Oct 2017 13:04:37 +0000 (15:04 +0200)]
crypto: talitos - fix setkey to check key weakness
Crypto manager test report the following failures:
[ 3.061081] alg: skcipher: setkey failed on test 5 for ecb-des-talitos: flags=100
[ 3.069342] alg: skcipher-ddst: setkey failed on test 5 for ecb-des-talitos: flags=100
[ 3.077754] alg: skcipher-ddst: setkey failed on test 5 for ecb-des-talitos: flags=100
This is due to setkey being expected to detect weak keys.
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
LEROY Christophe [Fri, 6 Oct 2017 13:04:35 +0000 (15:04 +0200)]
crypto: talitos - fix memory corruption on SEC2
On SEC2, when using the old descriptors type (hmac snoop no afeu)
for doing IPsec, the CICV out pointeur points out of the allocated
memory.
[ 2.502554] =============================================================================
[ 2.510740] BUG dma-kmalloc-256 (Not tainted): Redzone overwritten
[ 2.516907] -----------------------------------------------------------------------------
[ 2.516907]
[ 2.526535] Disabling lock debugging due to kernel taint
[ 2.531845] INFO: 0xde858108-0xde85810b. First byte 0xf8 instead of 0xcc
[ 2.538549] INFO: Allocated in 0x806181a9 age=0 cpu=0 pid=58
[ 2.544229] __kmalloc+0x374/0x564
[ 2.547649] talitos_edesc_alloc+0x17c/0x48c
[ 2.551929] aead_edesc_alloc+0x80/0x154
[ 2.555863] aead_encrypt+0x30/0xe0
[ 2.559368] __test_aead+0x5a0/0x1f3c
[ 2.563042] test_aead+0x2c/0x110
[ 2.566371] alg_test_aead+0x5c/0xf4
[ 2.569958] alg_test+0x1dc/0x5a0
[ 2.573305] cryptomgr_test+0x50/0x70
[ 2.576984] kthread+0xd8/0x134
[ 2.580155] ret_from_kernel_thread+0x5c/0x64
[ 2.584534] INFO: Freed in ipsec_esp_encrypt_done+0x130/0x240 age=6 cpu=0 pid=0
[ 2.591839] ipsec_esp_encrypt_done+0x130/0x240
[ 2.596395] flush_channel+0x1dc/0x488
[ 2.600161] talitos2_done_4ch+0x30/0x200
[ 2.604185] tasklet_action+0xa0/0x13c
[ 2.607948] __do_softirq+0x148/0x6cc
[ 2.611623] irq_exit+0xc0/0x124
[ 2.614869] call_do_irq+0x24/0x3c
[ 2.618292] do_IRQ+0x78/0x108
[ 2.621369] ret_from_except+0x0/0x14
[ 2.625055] finish_task_switch+0x58/0x350
[ 2.629165] schedule+0x80/0x134
[ 2.632409] schedule_preempt_disabled+0x38/0xc8
[ 2.637042] cpu_startup_entry+0xe4/0x190
[ 2.641074] start_kernel+0x3f4/0x408
[ 2.644741] 0x3438
[ 2.646857] INFO: Slab 0xdffbdb00 objects=9 used=1 fp=0xde8581c0 flags=0x0080
[ 2.653978] INFO: Object 0xde858008 @offset=8 fp=0xca4395df
[ 2.653978]
[ 2.661032] Redzone
de858000: cc cc cc cc cc cc cc cc ........
[ 2.669029] Object
de858008: 00 00 00 02 00 00 00 02 00 6b 6b 6b 1e 83 ea 28 .........kkk...(
[ 2.677628] Object
de858018: 00 00 00 70 1e 85 80 64 ff 73 1d 21 6b 6b 6b 6b ...p...d.s.!kkkk
[ 2.686228] Object
de858028: 00 20 00 00 1e 84 17 24 00 10 00 00 1e 85 70 00 . .....$......p.
[ 2.694829] Object
de858038: 00 18 00 00 1e 84 17 44 00 08 00 00 1e 83 ea 28 .......D.......(
[ 2.703430] Object
de858048: 00 80 00 00 1e 84 f0 00 00 80 00 00 1e 85 70 10 ..............p.
[ 2.712030] Object
de858058: 00 20 6b 00 1e 85 80 f4 6b 6b 6b 6b 00 80 02 00 . k.....kkkk....
[ 2.720629] Object
de858068: 1e 84 f0 00 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b ....kkkkkkkkkkkk
[ 2.729230] Object
de858078: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 2.737830] Object
de858088: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 2.746429] Object
de858098: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 2.755029] Object
de8580a8: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 2.763628] Object
de8580b8: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 2.772229] Object
de8580c8: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 2.780829] Object
de8580d8: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
[ 2.789430] Object
de8580e8: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 73 b0 ea 9f kkkkkkkkkkkks...
[ 2.798030] Object
de8580f8: e8 18 80 d6 56 38 44 c0 db e3 4f 71 f7 ce d1 d3 ....V8D...Oq....
[ 2.806629] Redzone
de858108: f8 bd 3e 4f ..>O
[ 2.814279] Padding
de8581b0: 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZ
[ 2.822283] CPU: 0 PID: 0 Comm: swapper Tainted: G B
4.9.50-g995be12679 #179
[ 2.831819] Call Trace:
[ 2.834301] [
dffefd20] [
c01aa9a8] check_bytes_and_report+0x100/0x194 (unreliable)
[ 2.841801] [
dffefd50] [
c01aac3c] check_object+0x200/0x530
[ 2.847306] [
dffefd80] [
c01ae584] free_debug_processing+0x290/0x690
[ 2.853585] [
dffefde0] [
c01aec8c] __slab_free+0x308/0x628
[ 2.859000] [
dffefe80] [
c05057f4] ipsec_esp_encrypt_done+0x130/0x240
[ 2.865378] [
dffefeb0] [
c05002c4] flush_channel+0x1dc/0x488
[ 2.870968] [
dffeff10] [
c05007a8] talitos2_done_4ch+0x30/0x200
[ 2.876814] [
dffeff30] [
c002fe38] tasklet_action+0xa0/0x13c
[ 2.882399] [
dffeff60] [
c002f118] __do_softirq+0x148/0x6cc
[ 2.887896] [
dffeffd0] [
c002f954] irq_exit+0xc0/0x124
[ 2.892968] [
dffefff0] [
c0013adc] call_do_irq+0x24/0x3c
[ 2.898213] [
c0d4be00] [
c000757c] do_IRQ+0x78/0x108
[ 2.903113] [
c0d4be30] [
c0015c08] ret_from_except+0x0/0x14
[ 2.908634] --- interrupt: 501 at finish_task_switch+0x70/0x350
[ 2.908634] LR = finish_task_switch+0x58/0x350
[ 2.919327] [
c0d4bf20] [
c085e1d4] schedule+0x80/0x134
[ 2.924398] [
c0d4bf50] [
c085e2c0] schedule_preempt_disabled+0x38/0xc8
[ 2.930853] [
c0d4bf60] [
c007f064] cpu_startup_entry+0xe4/0x190
[ 2.936707] [
c0d4bfb0] [
c096c434] start_kernel+0x3f4/0x408
[ 2.942198] [
c0d4bff0] [
00003438] 0x3438
[ 2.946137] FIX dma-kmalloc-256: Restoring 0xde858108-0xde85810b=0xcc
[ 2.946137]
[ 2.954158] FIX dma-kmalloc-256: Object at 0xde858008 not freed
This patch reworks the handling of the CICV out in order
to properly handle all cases.
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
LEROY Christophe [Fri, 6 Oct 2017 13:04:33 +0000 (15:04 +0200)]
crypto: talitos - fix AEAD test failures
AEAD tests fail when destination SG list has more than 1 element.
[ 2.058752] alg: aead: Test 1 failed on encryption for authenc-hmac-sha1-cbc-aes-talitos
[ 2.066965]
00000000: 53 69 6e 67 6c 65 20 62 6c 6f 63 6b 20 6d 73 67
00000010: c0 43 ff 74 c0 43 ff e0 de 83 d1 20 de 84 8e 54
00000020: de 83 d7 c4
[ 2.082138] alg: aead: Test 1 failed on encryption for authenc-hmac-sha1-cbc-aes-talitos
[ 2.090435]
00000000: 53 69 6e 67 6c 65 20 62 6c 6f 63 6b 20 6d 73 67
00000010: de 84 ea 58 c0 93 1a 24 de 84 e8 59 de 84 f1 20
00000020: 00 00 00 00
[ 2.105721] alg: aead: Test 1 failed on encryption for authenc-hmac-sha1-cbc-3des-talitos
[ 2.114259]
00000000: 6f 54 20 6f 61 4d 79 6e 53 20 63 65 65 72 73 74
00000010: 54 20 6f 6f 4d 20 6e 61 20 79 65 53 72 63 74 65
00000020: 20 73 6f 54 20 6f 61 4d 79 6e 53 20 63 65 65 72
00000030: 73 74 54 20 6f 6f 4d 20 6e 61 20 79 65 53 72 63
00000040: 74 65 20 73 6f 54 20 6f 61 4d 79 6e 53 20 63 65
00000050: 65 72 73 74 54 20 6f 6f 4d 20 6e 61 20 79 65 53
00000060: 72 63 74 65 20 73 6f 54 20 6f 61 4d 79 6e 53 20
00000070: 63 65 65 72 73 74 54 20 6f 6f 4d 20 6e 61 0a 79
00000080: c0 50 f1 ac c0 50 f3 38 c0 50 f3 94 c0 50 f5 30
00000090: c0 99 74 3c
[ 2.166410] alg: aead: Test 1 failed on encryption for authenc-hmac-sha1-cbc-3des-talitos
[ 2.174794]
00000000: 6f 54 20 6f 61 4d 79 6e 53 20 63 65 65 72 73 74
00000010: 54 20 6f 6f 4d 20 6e 61 20 79 65 53 72 63 74 65
00000020: 20 73 6f 54 20 6f 61 4d 79 6e 53 20 63 65 65 72
00000030: 73 74 54 20 6f 6f 4d 20 6e 61 20 79 65 53 72 63
00000040: 74 65 20 73 6f 54 20 6f 61 4d 79 6e 53 20 63 65
00000050: 65 72 73 74 54 20 6f 6f 4d 20 6e 61 20 79 65 53
00000060: 72 63 74 65 20 73 6f 54 20 6f 61 4d 79 6e 53 20
00000070: 63 65 65 72 73 74 54 20 6f 6f 4d 20 6e 61 0a 79
00000080: c0 50 f1 ac c0 50 f3 38 c0 50 f3 94 c0 50 f5 30
00000090: c0 99 74 3c
[ 2.226486] alg: No test for authenc(hmac(sha224),cbc(aes)) (authenc-hmac-sha224-cbc-aes-talitos)
[ 2.236459] alg: No test for authenc(hmac(sha224),cbc(aes)) (authenc-hmac-sha224-cbc-aes-talitos)
[ 2.247196] alg: aead: Test 1 failed on encryption for authenc-hmac-sha224-cbc-3des-talitos
[ 2.255555]
00000000: 6f 54 20 6f 61 4d 79 6e 53 20 63 65 65 72 73 74
00000010: 54 20 6f 6f 4d 20 6e 61 20 79 65 53 72 63 74 65
00000020: 20 73 6f 54 20 6f 61 4d 79 6e 53 20 63 65 65 72
00000030: 73 74 54 20 6f 6f 4d 20 6e 61 20 79 65 53 72 63
00000040: 74 65 20 73 6f 54 20 6f 61 4d 79 6e 53 20 63 65
00000050: 65 72 73 74 54 20 6f 6f 4d 20 6e 61 20 79 65 53
00000060: 72 63 74 65 20 73 6f 54 20 6f 61 4d 79 6e 53 20
00000070: 63 65 65 72 73 74 54 20 6f 6f 4d 20 6e 61 0a 79
00000080: c0 50 f1 ac c0 50 f3 38 c0 50 f3 94 c0 50 f5 30
00000090: c0 99 74 3c c0 96 e5 b8
[ 2.309004] alg: aead: Test 1 failed on encryption for authenc-hmac-sha224-cbc-3des-talitos
[ 2.317562]
00000000: 6f 54 20 6f 61 4d 79 6e 53 20 63 65 65 72 73 74
00000010: 54 20 6f 6f 4d 20 6e 61 20 79 65 53 72 63 74 65
00000020: 20 73 6f 54 20 6f 61 4d 79 6e 53 20 63 65 65 72
00000030: 73 74 54 20 6f 6f 4d 20 6e 61 20 79 65 53 72 63
00000040: 74 65 20 73 6f 54 20 6f 61 4d 79 6e 53 20 63 65
00000050: 65 72 73 74 54 20 6f 6f 4d 20 6e 61 20 79 65 53
00000060: 72 63 74 65 20 73 6f 54 20 6f 61 4d 79 6e 53 20
00000070: 63 65 65 72 73 74 54 20 6f 6f 4d 20 6e 61 0a 79
00000080: c0 50 f1 ac c0 50 f3 38 c0 50 f3 94 c0 50 f5 30
00000090: c0 99 74 3c c0 96 e5 b8
[ 2.370710] alg: aead: Test 1 failed on encryption for authenc-hmac-sha256-cbc-aes-talitos
[ 2.379177]
00000000: 53 69 6e 67 6c 65 20 62 6c 6f 63 6b 20 6d 73 67
00000010: 54 20 6f 6f 4d 20 6e 61 20 79 65 53 72 63 74 65
00000020: 20 73 6f 54 20 6f 61 4d 79 6e 53 20 63 65 65 72
[ 2.397863] alg: aead: Test 1 failed on encryption for authenc-hmac-sha256-cbc-aes-talitos
[ 2.406134]
00000000: 53 69 6e 67 6c 65 20 62 6c 6f 63 6b 20 6d 73 67
00000010: 54 20 6f 6f 4d 20 6e 61 20 79 65 53 72 63 74 65
00000020: 20 73 6f 54 20 6f 61 4d 79 6e 53 20 63 65 65 72
[ 2.424789] alg: aead: Test 1 failed on encryption for authenc-hmac-sha256-cbc-3des-talitos
[ 2.433491]
00000000: 6f 54 20 6f 61 4d 79 6e 53 20 63 65 65 72 73 74
00000010: 54 20 6f 6f 4d 20 6e 61 20 79 65 53 72 63 74 65
00000020: 20 73 6f 54 20 6f 61 4d 79 6e 53 20 63 65 65 72
00000030: 73 74 54 20 6f 6f 4d 20 6e 61 20 79 65 53 72 63
00000040: 74 65 20 73 6f 54 20 6f 61 4d 79 6e 53 20 63 65
00000050: 65 72 73 74 54 20 6f 6f 4d 20 6e 61 20 79 65 53
00000060: 72 63 74 65 20 73 6f 54 20 6f 61 4d 79 6e 53 20
00000070: 63 65 65 72 73 74 54 20 6f 6f 4d 20 6e 61 0a 79
00000080: c0 50 f1 ac c0 50 f3 38 c0 50 f3 94 c0 50 f5 30
00000090: c0 99 74 3c c0 96 e5 b8 c0 96 e9 20 c0 00 3d dc
[ 2.488832] alg: aead: Test 1 failed on encryption for authenc-hmac-sha256-cbc-3des-talitos
[ 2.497387]
00000000: 6f 54 20 6f 61 4d 79 6e 53 20 63 65 65 72 73 74
00000010: 54 20 6f 6f 4d 20 6e 61 20 79 65 53 72 63 74 65
00000020: 20 73 6f 54 20 6f 61 4d 79 6e 53 20 63 65 65 72
00000030: 73 74 54 20 6f 6f 4d 20 6e 61 20 79 65 53 72 63
00000040: 74 65 20 73 6f 54 20 6f 61 4d 79 6e 53 20 63 65
00000050: 65 72 73 74 54 20 6f 6f 4d 20 6e 61 20 79 65 53
00000060: 72 63 74 65 20 73 6f 54 20 6f 61 4d 79 6e 53 20
00000070: 63 65 65 72 73 74 54 20 6f 6f 4d 20 6e 61 0a 79
00000080: c0 50 f1 ac c0 50 f3 38 c0 50 f3 94 c0 50 f5 30
00000090: c0 99 74 3c c0 96 e5 b8 c0 96 e9 20 c0 00 3d dc
This patch fixes that.
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Christian Lamparter [Tue, 3 Oct 2017 23:00:17 +0000 (01:00 +0200)]
crypto: crypto4xx - add aes-gcm support
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>
Christian Lamparter [Tue, 3 Oct 2017 23:00:16 +0000 (01:00 +0200)]
crypto: crypto4xx - add aes-ccm support
This patch adds aes-ccm support.
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Christian Lamparter [Tue, 3 Oct 2017 23:00:15 +0000 (01:00 +0200)]
crypto: crypto4xx - prepare for AEAD support
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>
Christian Lamparter [Tue, 3 Oct 2017 23:00:14 +0000 (01:00 +0200)]
crypto: crypto4xx - simplify sa and state context acquisition
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>
Christian Lamparter [Tue, 3 Oct 2017 23:00:13 +0000 (01:00 +0200)]
crypto: crypto4xx - fix stalls under heavy load
If the crypto4xx device is continuously loaded by dm-crypt
and ipsec work, it will start to work intermittent after a
few (between 20-30) seconds, hurting throughput and latency.
This patch contains various stability improvements in order
to fix this issue. So far, the hardware has survived more
than a day without suffering any stalls under the continuous
load.
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Christian Lamparter [Tue, 3 Oct 2017 23:00:12 +0000 (01:00 +0200)]
crypto: crypto4xx - fix various warnings
crypto4xx_core.c:179:6: warning: symbol 'crypto4xx_free_state_record'
was not declared. Should it be static?
crypto4xx_core.c:331:5: warning: symbol 'crypto4xx_get_n_gd'
was not declared. Should it be static?
crypto4xx_core.c:652:6: warning: symbol 'crypto4xx_return_pd'
was not declared. Should it be static?
crypto4xx_return_pd() is not used by anything. Therefore it is removed.
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Christian Lamparter [Tue, 3 Oct 2017 23:00:11 +0000 (01:00 +0200)]
crypto: crypto4xx - overhaul crypto4xx_build_pd()
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>
Christian Lamparter [Tue, 3 Oct 2017 23:00:10 +0000 (01:00 +0200)]
crypto: crypto4xx - use the correct LE32 format for IV and key defs
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>
Christian Lamparter [Tue, 3 Oct 2017 23:00:09 +0000 (01:00 +0200)]
crypto: crypto4xx - add backlog queue support
Previously, If the crypto4xx driver used all available
security contexts, it would simply refuse new requests
with -EAGAIN. CRYPTO_TFM_REQ_MAY_BACKLOG was ignored.
in case of dm-crypt.c's crypt_convert() function this was
causing the following errors to manifest, if the system was
pushed hard enough:
| EXT4-fs warning (dm-1): ext4_end_bio:314: I/O error -5 writing to ino ..
| EXT4-fs warning (dm-1): ext4_end_bio:314: I/O error -5 writing to ino ..
| EXT4-fs warning (dm-1): ext4_end_bio:314: I/O error -5 writing to ino ..
| JBD2: Detected IO errors while flushing file data on dm-1-8
| Aborting journal on device dm-1-8.
| EXT4-fs error : ext4_journal_check_start:56: Detected aborted journal
| EXT4-fs (dm-1): Remounting filesystem read-only
| EXT4-fs : ext4_writepages: jbd2_start: 2048 pages, inode 498...; err -30
(This did cause corruptions due to failed writes)
To fix this mess, the crypto4xx driver needs to notifiy the
user to slow down. This can be achieved by returning -EBUSY
on requests, once the crypto hardware was falling behind.
Note: -EBUSY has two different meanings. Setting the flag
CRYPTO_TFM_REQ_MAY_BACKLOG implies that the request was
successfully queued, by the crypto driver. To achieve this
requirement, the implementation introduces a threshold check and
adds logic to the completion routines in much the same way as
AMD's Cryptographic Coprocessor (CCP) driver do.
Note2: Tests showed that dm-crypt starved ipsec traffic.
Under load, ipsec links dropped to 0 Kbits/s. This is because
dm-crypt's callback would instantly queue the next request.
In order to not starve ipsec, the driver reserves a small
portion of the available crypto contexts for this purpose.
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Christian Lamparter [Tue, 3 Oct 2017 23:00:08 +0000 (01:00 +0200)]
crypto: crypto4xx - increase context and scatter ring buffer elements
If crypto4xx is used in conjunction with dm-crypt, the available
ring buffer elements are not enough to handle the load properly.
On an aes-cbc-essiv:sha256 encrypted swap partition the read
performance is abyssal: (tested with hdparm -t)
/dev/mapper/swap_crypt:
Timing buffered disk reads: 14 MB in 3.68 seconds = 3.81 MB/sec
The patch increases both PPC4XX_NUM_SD and PPC4XX_NUM_PD to 256.
This improves the performance considerably:
/dev/mapper/swap_crypt:
Timing buffered disk reads: 104 MB in 3.03 seconds = 34.31 MB/sec
Furthermore, PPC4XX_LAST_SD, PPC4XX_LAST_GD and PPC4XX_LAST_PD
can be easily calculated from their respective PPC4XX_NUM_*
constant.
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Christian Lamparter [Tue, 3 Oct 2017 23:00:07 +0000 (01:00 +0200)]
crypto: crypto4xx - fix type mismatch compiler error
This patch fixes a type mismatch error that I accidentally
introduced when I moved and refactored the dynamic_contents
helpers.
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Christian Lamparter [Tue, 3 Oct 2017 23:00:06 +0000 (01:00 +0200)]
crypto: crypto4xx - fix off-by-one AES-OFB
I used aes-cbc as a template for ofb. But sadly I forgot
to update set_key method to crypto4xx_setkey_aes_ofb().
this was caught by the testmgr:
alg: skcipher: Test 1 failed (invalid result) on encr. for ofb-aes-ppc4xx
00000000: 76 49 ab ac 81 19 b2 46 ce e9 8e 9b 12 e9 19 7d
00000010: 50 86 cb 9b 50 72 19 ee 95 db 11 3a 91 76 78 b2
00000020: 73 be d6 b8 e3 c1 74 3b 71 16 e6 9e 22 22 95 16
00000030: 3f f1 ca a1 68 1f ac 09 12 0e ca 30 75 86 e1 a7
With the correct set_key method, the aes-ofb cipher passes the test.
name : ofb(aes)
driver : ofb-aes-ppc4xx
module : crypto4xx
priority : 300
refcnt : 1
selftest : passed
internal : no
type : ablkcipher
async : yes
blocksize : 16
min keysize : 16
max keysize : 32
ivsize : 16
geniv : <default>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Christian Lamparter [Tue, 3 Oct 2017 23:00:05 +0000 (01:00 +0200)]
crypto: crypto4xx - wire up hmac_mc to hmac_muting
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>
Stephan Mueller [Tue, 3 Oct 2017 02:19:59 +0000 (04:19 +0200)]
crypto: keywrap - simplify code
The code is simplified by using two __be64 values for the operation
instead of using two arrays of u8. This allows to get rid of the memory
alignment code. In addition, the crypto_xor can be replaced with a
native XOR operation. Finally, the definition of the variables is
re-arranged such that the data structures come before simple variables
to potentially reduce memory space.
Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>