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crypto: fips - add FIPS test failure notification chain

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Crypto test failures in FIPS mode cause an immediate panic, but
on some system the cryptographic boundary extends beyond just
the Linux controlled domain.

Add a simple atomic notification chain to allow interested parties
to register to receive notification prior to us kicking the bucket.

Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Gilad Ben-Yossef
2019-07-02 14:39:20 +03:00
committed by Herbert Xu
parent 76a95bd8f9
commit 9552389c46
3 changed files with 21 additions and 1 deletions
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7
include/linux/fips.h
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@@ -4,8 +4,15 @@
#ifdef CONFIG_CRYPTO_FIPS
extern int fips_enabled;
extern struct atomic_notifier_head fips_fail_notif_chain;
void fips_fail_notify(void);
#else
#define fips_enabled 0
static inline void fips_fail_notify(void) {}
#endif
#endif