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* Merge tag 'docs-4.10-2' of git://git.lwn.net/linuxLinus Torvalds2016-12-171-12/+2
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull more documentation updates from Jonathan Corbet: "This converts the crypto DocBook to Sphinx" * tag 'docs-4.10-2' of git://git.lwn.net/linux: crypto: doc - optimize compilation crypto: doc - clarify AEAD memory structure crypto: doc - remove crypto_alloc_ablkcipher crypto: doc - add KPP documentation crypto: doc - fix separation of cipher / req API crypto: doc - fix source comments for Sphinx crypto: doc - remove crypto API DocBook crypto: doc - convert crypto API documentation to Sphinx
| * crypto: doc - clarify AEAD memory structureStephan Mueller2016-12-131-12/+2
| | | | | | | | | | | | | | | | The previous description have been misleading and partially incorrect. Reported-by: Harsh Jain <harshjain.prof@gmail.com> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* | Merge branch 'linus' of ↵Linus Torvalds2016-12-152-1/+4
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 Pull crypto fixes from Herbert Xu: "This fixes the following issues: - a crash regression in the new skcipher walker - incorrect return value in public_key_verify_signature - fix for in-place signing in the sign-file utility" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: skcipher - fix crash in virtual walk sign-file: Fix inplace signing when src and dst names are both specified crypto: asymmetric_keys - set error code on failure
| * | crypto: skcipher - fix crash in virtual walkArd Biesheuvel2016-12-141-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The new skcipher walk API may crash in the following way. (Interestingly, the tcrypt boot time tests seem unaffected, while an explicit test using the module triggers it) Unable to handle kernel NULL pointer dereference at virtual address 00000000 ... [<ffff000008431d84>] __memcpy+0x84/0x180 [<ffff0000083ec0d0>] skcipher_walk_done+0x328/0x340 [<ffff0000080c5c04>] ctr_encrypt+0x84/0x100 [<ffff000008406d60>] simd_skcipher_encrypt+0x88/0x98 [<ffff0000083fa05c>] crypto_rfc3686_crypt+0x8c/0x98 [<ffff0000009b0900>] test_skcipher_speed+0x518/0x820 [tcrypt] [<ffff0000009b31c0>] do_test+0x1408/0x3b70 [tcrypt] [<ffff0000009bd050>] tcrypt_mod_init+0x50/0x1000 [tcrypt] [<ffff0000080838f4>] do_one_initcall+0x44/0x138 [<ffff0000081aee60>] do_init_module+0x68/0x1e0 [<ffff0000081524d0>] load_module+0x1fd0/0x2458 [<ffff000008152c38>] SyS_finit_module+0xe0/0xf0 [<ffff0000080836f0>] el0_svc_naked+0x24/0x28 This is due to the fact that skcipher_done_slow() may be entered with walk->buffer unset. Since skcipher_walk_done() already deals with the case where walk->buffer == walk->page, it appears to be the intention that walk->buffer point to walk->page after skcipher_next_slow(), so ensure that is the case. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * | crypto: asymmetric_keys - set error code on failurePan Bian2016-12-141-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In function public_key_verify_signature(), returns variable ret on error paths. When the call to kmalloc() fails, the value of ret is 0, and it is not set to an errno before returning. This patch fixes the bug. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=188891 Signed-off-by: Pan Bian <bianpan2016@163.com> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* | | Merge branch 'linus' of ↵Linus Torvalds2016-12-1440-963/+3300
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 Pull crypto updates from Herbert Xu: "Here is the crypto update for 4.10: API: - add skcipher walk interface - add asynchronous compression (acomp) interface - fix algif_aed AIO handling of zero buffer Algorithms: - fix unaligned access in poly1305 - fix DRBG output to large buffers Drivers: - add support for iMX6UL to caam - fix givenc descriptors (used by IPsec) in caam - accelerated SHA256/SHA512 for ARM64 from OpenSSL - add SSE CRCT10DIF and CRC32 to ARM/ARM64 - add AEAD support to Chelsio chcr - add Armada 8K support to omap-rng" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (148 commits) crypto: testmgr - fix overlap in chunked tests again crypto: arm/crc32 - accelerated support based on x86 SSE implementation crypto: arm64/crc32 - accelerated support based on x86 SSE implementation crypto: arm/crct10dif - port x86 SSE implementation to ARM crypto: arm64/crct10dif - port x86 SSE implementation to arm64 crypto: testmgr - add/enhance test cases for CRC-T10DIF crypto: testmgr - avoid overlap in chunked tests crypto: chcr - checking for IS_ERR() instead of NULL crypto: caam - check caam_emi_slow instead of re-lookup platform crypto: algif_aead - fix AIO handling of zero buffer crypto: aes-ce - Make aes_simd_algs static crypto: algif_skcipher - set error code when kcalloc fails crypto: caam - make aamalg_desc a proper module crypto: caam - pass key buffers with typesafe pointers crypto: arm64/aes-ce-ccm - Fix AEAD decryption length MAINTAINERS: add crypto headers to crypto entry crypt: doc - remove misleading mention of async API crypto: doc - fix header file name crypto: api - fix comment typo crypto: skcipher - Add separate walker for AEAD decryption ..
| * | crypto: testmgr - fix overlap in chunked tests againArd Biesheuvel2016-12-081-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 7e4c7f17cde2 ("crypto: testmgr - avoid overlap in chunked tests") attempted to address a problem in the crypto testmgr code where chunked test cases are copied to memory in a way that results in overlap. However, the fix recreated the exact same issue for other chunked tests, by putting IDX3 within 492 bytes of IDX1, which causes overlap if the first chunk exceeds 492 bytes, which is the case for at least one of the xts(aes) test cases. So increase IDX3 by another 1000 bytes. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * | crypto: testmgr - add/enhance test cases for CRC-T10DIFArd Biesheuvel2016-12-071-28/+42
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The existing test cases only exercise a small slice of the various possible code paths through the x86 SSE/PCLMULQDQ implementation, and the upcoming ports of it for arm64. So add one that exceeds 256 bytes in size, and convert another to a chunked test. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * | crypto: testmgr - avoid overlap in chunked testsArd Biesheuvel2016-12-071-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | The IDXn offsets are chosen such that tap values (which may go up to 255) end up overlapping in the xbuf allocation. In particular, IDX1 and IDX3 are too close together, so update IDX3 to avoid this issue. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * | crypto: algif_aead - fix AIO handling of zero bufferStephan Mueller2016-12-011-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Handle the case when the caller provided a zero buffer to sendmsg/sendpage. Such scenario is legal for AEAD ciphers when no plaintext / ciphertext and no AAD is provided and the caller only requests the generation of the tag value. Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * | crypto: algif_skcipher - set error code when kcalloc failsPan Bian2016-12-011-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix bug https://bugzilla.kernel.org/show_bug.cgi?id=188521. In function skcipher_recvmsg_async(), variable err takes the return value, and its value should be negative on failures. Because variable err may be reassigned and checked before calling kcalloc(), its value may be 0 (indicates no error) even if kcalloc() fails. This patch fixes the bug by explicitly assigning -ENOMEM to err when kcalloc() returns a NULL pointer. Signed-off-by: Pan Bian <bianpan2016@163.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * | crypto: skcipher - Add separate walker for AEAD decryptionHerbert Xu2016-12-011-3/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The AEAD decrypt interface includes the authentication tag in req->cryptlen. Therefore we need to exlucde that when doing a walk over it. This patch adds separate walker functions for AEAD encryption and decryption. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
| * | crypto: skcipher - fix crash in skcipher_walk_aead()Ard Biesheuvel2016-11-301-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The new skcipher_walk_aead() may crash in the following way due to the walk flag SKCIPHER_WALK_PHYS not being cleared at the start of the walk: Unable to handle kernel NULL pointer dereference at virtual address 00000001 [..] Internal error: Oops: 96000044 [#1] PREEMPT SMP [..] PC is at skcipher_walk_next+0x208/0x450 LR is at skcipher_walk_next+0x1e4/0x450 pc : [<ffff2b93b7104e20>] lr : [<ffff2b93b7104dfc>] pstate: 40000045 sp : ffffb925fa517940 [...] [<ffff2b93b7104e20>] skcipher_walk_next+0x208/0x450 [<ffff2b93b710535c>] skcipher_walk_first+0x54/0x148 [<ffff2b93b7105664>] skcipher_walk_aead+0xd4/0x108 [<ffff2b93b6e77928>] ccm_encrypt+0x68/0x158 So clear the flag at the appropriate time. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * | Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Herbert Xu2016-11-304-16/+35
| |\ \ | | | | | | | | | | | | Merge the crypto tree to pull in chelsio chcr fix.
| * | | crypto: testmgr - don't use stack buffer in test_acomp()Eric Biggers2016-11-281-3/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With virtually-mapped stacks (CONFIG_VMAP_STACK=y), using the scatterlist crypto API with stack buffers is not allowed, and with appropriate debugging options will cause the 'BUG_ON(!virt_addr_valid(buf));' in sg_set_buf() to be triggered. Use a heap buffer instead. Fixes: d7db7a882deb ("crypto: acomp - update testmgr with support for acomp") Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * | | crypto: cbc - Export CBC implementationHerbert Xu2016-11-281-127/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch moves the core CBC implementation into a header file so that it can be reused by drivers implementing CBC. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * | | crypto: cbc - Convert to skcipherHerbert Xu2016-11-281-104/+138
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch converts cbc over to the skcipher interface. It also rearranges the code to allow it to be reused by drivers. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * | | crypto: aesni - Convert to skcipherHerbert Xu2016-11-281-4/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch converts aesni (including fpu) over to the skcipher interface. The LRW implementation has been removed as the generic LRW code can now be used directly on top of the accelerated ECB implementation. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * | | crypto: testmgr - Do not test internal algorithmsHerbert Xu2016-11-282-150/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently we manually filter out internal algorithms using a list in testmgr. This is dangerous as internal algorithms cannot be safely used even by testmgr. This patch ensures that they're never processed by testmgr at all. This patch also removes an obsolete bypass for nivciphers which no longer exist. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * | | crypto: glue_helper - Add skcipher xts helpersHerbert Xu2016-11-281-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds xts helpers that use the skcipher interface rather than blkcipher. This will be used by aesni_intel. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * | | crypto: pcbc - Convert to skcipherHerbert Xu2016-11-281-92/+109
| | | | | | | | | | | | | | | | | | | | | | | | This patch converts lrw over to the skcipher interface. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * | | crypto: simd - Add simd skcipher helperHerbert Xu2016-11-283-0/+232
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds the simd skcipher helper which is meant to be a replacement for ablk helper. It replaces the underlying blkcipher interface with skcipher, and also presents the top-level algorithm as an skcipher. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * | | crypto: cryptd - Add support for skcipherHerbert Xu2016-11-281-2/+282
| | | | | | | | | | | | | | | | | | | | | | | | This patch adds skcipher support to cryptd alongside ablkcipher. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * | | crypto: api - Do not clear type bits in crypto_larval_lookupHerbert Xu2016-11-281-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently all bits not set in mask are cleared in crypto_larval_lookup. This is unnecessary as wherever the type bits are used it is always masked anyway. This patch removes the clearing so that we may use bits set in the type but not in the mask for special purposes, e.g., picking up internal algorithms. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * | | crypto: xts - Convert to skcipherHerbert Xu2016-11-281-155/+392
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch converts xts over to the skcipher interface. It also optimises the implementation to be based on ECB instead of the underlying cipher. For compatibility the existing naming scheme of xts(aes) is maintained as opposed to the more obvious one of xts(ecb(aes)). Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * | | crypto: lrw - Convert to skcipherHerbert Xu2016-11-281-127/+380
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch converts lrw over to the skcipher interface. It also optimises the implementation to be based on ECB instead of the underlying cipher. For compatibility the existing naming scheme of lrw(aes) is maintained as opposed to the more obvious one of lrw(ecb(aes)). Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * | | crypto: skcipher - Add skcipher walk interfaceHerbert Xu2016-11-281-0/+511
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds the skcipher walk interface which replaces both blkcipher walk and ablkcipher walk. Just like blkcipher walk it can also be used for AEAD algorithms. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * | | crypto: crc32c-vpmsum - Rename CRYPT_CRC32C_VPMSUM optionJean Delvare2016-11-281-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For consistency with the other 246 kernel configuration options, rename CRYPT_CRC32C_VPMSUM to CRYPTO_CRC32C_VPMSUM. Signed-off-by: Jean Delvare <jdelvare@suse.de> Cc: Anton Blanchard <anton@samba.org> Cc: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: Anton Blanchard <anton@samba.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * | | crypto: drbg - advance output buffer pointerStephan Mueller2016-11-211-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The CTR DRBG segments the number of random bytes to be generated into 128 byte blocks. The current code misses the advancement of the output buffer pointer when the requestor asks for more than 128 bytes of data. In this case, the next 128 byte block of random numbers is copied to the beginning of the output buffer again. This implies that only the first 128 bytes of the output buffer would ever be filled. The patch adds the advancement of the buffer pointer to fill the entire buffer. Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * | | crypto: gf128mul - Zero memory when freeing multiplication tableAlex Cope2016-11-171-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | GF(2^128) multiplication tables are typically used for secret information, so it's a good idea to zero them on free. Signed-off-by: Alex Cope <alexcope@google.com> Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * | | crypto: jitterentropy - drop duplicate header module.hGeliang Tang2016-11-171-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Drop duplicate header module.h from jitterentropy-kcapi.c. Signed-off-by: Geliang Tang <geliangtang@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * | | crypto: gf128mul - remove dead gf128mul_64k_lle codeAlex Cope2016-11-131-55/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This code is unlikely to be useful in the future because transforms don't know how often keys will be changed, new algorithms are unlikely to use lle representation, and tables should be replaced with carryless multiplication instructions when available. Signed-off-by: Alex Cope <alexcope@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * | | crypto: dh - Consistenly return negative error codesMat Martineau2016-11-131-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix the single instance where a positive EINVAL was returned. Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * | | crypto: poly1305 - Use unaligned access where requiredJason A. Donenfeld2016-11-131-19/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | By using the unaligned access helpers, we drastically improve performance on small MIPS routers that have to go through the exception fix-up handler for these unaligned accesses. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> Reviewed-by: Eric Biggers <ebiggers@google.com> Acked-by: Martin Willi <martin@strongswan.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * | | crypto: cryptd - Remove unused but set variable 'tfm'Tobias Klauser2016-11-011-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove the unused but set variable tfm in cryptd_enqueue_request to fix the following warning when building with 'W=1': crypto/cryptd.c:125:21: warning: variable 'tfm' set but not used [-Wunused-but-set-variable] Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * | | crypto: skcipher - Get rid of crypto_spawn_skcipher2()Eric Biggers2016-11-017-7/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since commit 3a01d0ee2b99 ("crypto: skcipher - Remove top-level givcipher interface"), crypto_spawn_skcipher2() and crypto_spawn_skcipher() are equivalent. So switch callers of crypto_spawn_skcipher2() to crypto_spawn_skcipher() and remove it. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * | | crypto: skcipher - Get rid of crypto_grab_skcipher2()Eric Biggers2016-11-017-21/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since commit 3a01d0ee2b99 ("crypto: skcipher - Remove top-level givcipher interface"), crypto_grab_skcipher2() and crypto_grab_skcipher() are equivalent. So switch callers of crypto_grab_skcipher2() to crypto_grab_skcipher() and remove it. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * | | crypto: acomp - fix dependency in MakefileGiovanni Cabiddu2016-11-011-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix dependency between acomp and scomp that appears when acomp is built as module Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * | | crypto: acomp - update testmgr with support for acompGiovanni Cabiddu2016-10-251-13/+145
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Add tests to the test manager for algorithms exposed through acomp. Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * | | crypto: acomp - add support for deflate via scompGiovanni Cabiddu2016-10-252-10/+102
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Add scomp backend for deflate compression algorithm. Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * | | crypto: acomp - add support for 842 via scompGiovanni Cabiddu2016-10-252-2/+80
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Add scomp backend for 842 compression algorithm. Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * | | crypto: acomp - add support for lz4hc via scompGiovanni Cabiddu2016-10-252-10/+83
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Add scomp backend for lz4hc compression algorithm. Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * | | crypto: acomp - add support for lz4 via scompGiovanni Cabiddu2016-10-252-10/+82
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Add scomp backend for lz4 compression algorithm. Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * | | crypto: acomp - add support for lzo via scompGiovanni Cabiddu2016-10-252-15/+83
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Add scomp backend for lzo compression algorithm. Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * | | crypto: acomp - add driver-side scomp interfaceGiovanni Cabiddu2016-10-253-2/+410
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a synchronous back-end (scomp) to acomp. This allows to easily expose the already present compression algorithms in LKCF via acomp. Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * | | crypto: acomp - add asynchronous compression apiGiovanni Cabiddu2016-10-254-0/+149
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add acomp, an asynchronous compression api that uses scatterlist buffers. Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * | | crypto: engine - Handle the kthread worker using the new APIPetr Mladek2016-10-251-15/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use the new API to create and destroy the crypto engine kthread worker. The API hides some implementation details. In particular, kthread_create_worker() allocates and initializes struct kthread_worker. It runs the kthread the right way and stores task_struct into the worker structure. kthread_destroy_worker() flushes all pending works, stops the kthread and frees the structure. This patch does not change the existing behavior except for dynamically allocating struct kthread_worker and storing only the pointer of this structure. It is compile tested only because I did not find an easy way how to run the code. Well, it should be pretty safe given the nature of the change. Signed-off-by: Petr Mladek <pmladek@suse.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * | | crypto: gcm - Fix error return code in crypto_gcm_create_common()Wei Yongjun2016-10-251-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix to return error code -EINVAL from the invalid alg ivsize error handling case instead of 0, as done elsewhere in this function. Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * | | crypto: cmac - fix alignment of 'consts'Eric Biggers2016-10-211-4/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The per-transform 'consts' array is accessed as __be64 in crypto_cmac_digest_setkey() but was only guaranteed to be aligned to __alignof__(long). Fix this by aligning it to __alignof__(__be64). Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * | | crypto: cmac - return -EINVAL if block size is unsupportedEric Biggers2016-10-211-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | cmac_create() previously returned 0 if a cipher with a block size other than 8 or 16 bytes was specified. It should return -EINVAL instead. Granted, this doesn't actually change any behavior because cryptomgr currently ignores any return value other than -EAGAIN from template ->create() functions. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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