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698de82278
Currently the full set of crypto self-tests requires CONFIG_CRYPTO_MANAGER_EXTRA_TESTS=y. This is problematic in two ways. First, developers regularly overlook this option. Second, the description of the tests as "extra" sometimes gives the impression that it is not required that all algorithms pass these tests. Given that the main use case for the crypto self-tests is for developers, make enabling CONFIG_CRYPTO_SELFTESTS=y just enable the full set of crypto self-tests by default. The slow tests can still be disabled by adding the command-line parameter cryptomgr.noextratests=1, soon to be renamed to cryptomgr.noslowtests=1. The only known use case for doing this is for people trying to use the crypto self-tests to satisfy the FIPS 140-3 pre-operational self-testing requirements when the kernel is being validated as a FIPS 140-3 cryptographic module. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
58 lines
1.6 KiB
C
58 lines
1.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Shared crypto simd helpers
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*/
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#ifndef _CRYPTO_INTERNAL_SIMD_H
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#define _CRYPTO_INTERNAL_SIMD_H
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#include <asm/simd.h>
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#include <linux/percpu.h>
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#include <linux/types.h>
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/* skcipher support */
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struct simd_skcipher_alg;
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struct skcipher_alg;
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struct simd_skcipher_alg *simd_skcipher_create_compat(struct skcipher_alg *ialg,
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const char *algname,
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const char *drvname,
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const char *basename);
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void simd_skcipher_free(struct simd_skcipher_alg *alg);
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int simd_register_skciphers_compat(struct skcipher_alg *algs, int count,
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struct simd_skcipher_alg **simd_algs);
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void simd_unregister_skciphers(struct skcipher_alg *algs, int count,
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struct simd_skcipher_alg **simd_algs);
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/* AEAD support */
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struct simd_aead_alg;
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struct aead_alg;
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int simd_register_aeads_compat(struct aead_alg *algs, int count,
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struct simd_aead_alg **simd_algs);
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void simd_unregister_aeads(struct aead_alg *algs, int count,
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struct simd_aead_alg **simd_algs);
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/*
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* crypto_simd_usable() - is it allowed at this time to use SIMD instructions or
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* access the SIMD register file?
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*
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* This delegates to may_use_simd(), except that this also returns false if SIMD
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* in crypto code has been temporarily disabled on this CPU by the crypto
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* self-tests, in order to test the no-SIMD fallback code.
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*/
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#ifdef CONFIG_CRYPTO_SELFTESTS
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DECLARE_PER_CPU(bool, crypto_simd_disabled_for_test);
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#define crypto_simd_usable() \
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(may_use_simd() && !this_cpu_read(crypto_simd_disabled_for_test))
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#else
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#define crypto_simd_usable() may_use_simd()
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#endif
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#endif /* _CRYPTO_INTERNAL_SIMD_H */
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