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2019-04-18crypto: run initcalls for generic implementations earlierEric Biggers
Use subsys_initcall for registration of all templates and generic algorithm implementations, rather than module_init. Then change cryptomgr to use arch_initcall, to place it before the subsys_initcalls. This is needed so that when both a generic and optimized implementation of an algorithm are built into the kernel (not loadable modules), the generic implementation is registered before the optimized one. Otherwise, the self-tests for the optimized implementation are unable to allocate the generic implementation for the new comparison fuzz tests. Note that on arm, a side effect of this change is that self-tests for generic implementations may run before the unaligned access handler has been installed. So, unaligned accesses will crash the kernel. This is arguably a good thing as it makes it easier to detect that type of bug. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-11-20crypto: remove useless initializations of cra_listEric Biggers
Some algorithms initialize their .cra_list prior to registration. But this is unnecessary since crypto_register_alg() will overwrite .cra_list when adding the algorithm to the 'crypto_alg_list'. Apparently the useless assignment has just been copy+pasted around. So, remove the useless assignments. Exception: paes_s390.c uses cra_list to check whether the algorithm is registered or not, so I left that as-is for now. This patch shouldn't change any actual behavior. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-04-10crypto: lz4 - fixed decompress function to return error codeMyungho Jung
Decompress function in LZ4 library is supposed to return an error code or negative result. But, it returns -1 when any error is detected. Return error code when the library returns negative value. Signed-off-by: Myungho Jung <mhjungk@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-02-24crypto: change LZ4 modules to work with new LZ4 module versionSven Schmidt
Update the crypto modules using LZ4 compression as well as the test cases in testmgr.h to work with the new LZ4 module version. Link: http://lkml.kernel.org/r/1486321748-19085-4-git-send-email-4sschmid@informatik.uni-hamburg.de Signed-off-by: Sven Schmidt <4sschmid@informatik.uni-hamburg.de> Cc: Bongkyu Kim <bongkyu.kim@lge.com> Cc: Rui Salvaterra <rsalvaterra@gmail.com> Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: David S. Miller <davem@davemloft.net> Cc: Anton Vorontsov <anton@enomsg.org> Cc: Colin Cross <ccross@android.com> Cc: Kees Cook <keescook@chromium.org> Cc: Tony Luck <tony.luck@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-10-25crypto: acomp - add support for lz4hc via scompGiovanni Cabiddu
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>
2014-11-24crypto: prefix module autoloading with "crypto-"Kees Cook
This prefixes all crypto module loading with "crypto-" so we never run the risk of exposing module auto-loading to userspace via a crypto API, as demonstrated by Mathias Krause: https://lkml.org/lkml/2013/3/4/70 Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2014-08-29crypto: lz4,lz4hc - fix decompressionKOVACS Krisztian
The lz4 library has two functions for decompression, with slightly different signatures and behaviour. The lz4_decompress_crypto() function seemed to be using the one that assumes that the decompressed length is known in advance. This patch switches to the other decompression function and makes sure that the length of the decompressed output is properly returned to the caller. The same issue was present in the lz4hc algorithm. Coincidentally, this change also makes very basic lz4 and lz4hc compression tests in testmgr pass. Signed-off-by: KOVACS Krisztian <hidden@sch.bme.hu> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-07-09crypto: add lz4 Cryptographic APIChanho Min
Add support for lz4 and lz4hc compression algorithm using the lib/lz4/* codebase. [akpm@linux-foundation.org: fix warnings] Signed-off-by: Chanho Min <chanho.min@lge.com> Cc: "Darrick J. Wong" <djwong@us.ibm.com> Cc: Bob Pearson <rpearson@systemfabricworks.com> Cc: Richard Weinberger <richard@nod.at> Cc: Herbert Xu <herbert@gondor.hengli.com.au> Cc: Yann Collet <yann.collet.73@gmail.com> Cc: Kyungsik Lee <kyungsik.lee@lge.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>