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| author | Adam Langley <agl@google.com> | 2015-06-23 16:28:07 -0700 |
|---|---|---|
| committer | Adam Langley <agl@google.com> | 2015-06-23 16:33:55 -0700 |
| commit | bd9957e6e28506c4431ce8d3cadbc0a04905b15e (patch) | |
| tree | 25164b0a84665df0c05eb07a4abb82b39fa6d6a0 /src/crypto/rand/internal.h | |
| parent | e0846beeb321f7d3170e4e389950b12fce69ab10 (diff) | |
| download | external_boringssl-bd9957e6e28506c4431ce8d3cadbc0a04905b15e.zip external_boringssl-bd9957e6e28506c4431ce8d3cadbc0a04905b15e.tar.gz external_boringssl-bd9957e6e28506c4431ce8d3cadbc0a04905b15e.tar.bz2 | |
Handle RDRAND failures.
I mistakenly believed that only RDSEED could fail. However, the Intel
manuals state that RDRAND can fail too.
This change cherry-picks the following BoringSSL changes:
2cac3506 – Handle RDRAND failures.
248abbd7 – Add missing comma in .type pragma for rdrand code.
Change-Id: Icdc56a50ce36e9c525063583882c676a5312d313
Diffstat (limited to 'src/crypto/rand/internal.h')
| -rw-r--r-- | src/crypto/rand/internal.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/src/crypto/rand/internal.h b/src/crypto/rand/internal.h index 1cca7f3..5e6ea11 100644 --- a/src/crypto/rand/internal.h +++ b/src/crypto/rand/internal.h @@ -29,8 +29,9 @@ void CRYPTO_sysrand(uint8_t *buf, size_t len); int CRYPTO_have_hwrand(void); /* CRYPTO_hwrand fills |len| bytes at |buf| with entropy from the hardware. - * This function can only be called if |CRYPTO_have_hwrand| returns one. */ -void CRYPTO_hwrand(uint8_t *buf, size_t len); + * This function can only be called if |CRYPTO_have_hwrand| returns one. + * It returns one on success or zero on hardware failure. */ +int CRYPTO_hwrand(uint8_t *buf, size_t len); #if defined(__cplusplus) |