diff options
Diffstat (limited to 'src/interface/efi/efi_entropy.c')
| -rw-r--r-- | src/interface/efi/efi_entropy.c | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/src/interface/efi/efi_entropy.c b/src/interface/efi/efi_entropy.c index 1e8ddfb..e5c3935 100644 --- a/src/interface/efi/efi_entropy.c +++ b/src/interface/efi/efi_entropy.c @@ -36,6 +36,8 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); * */ +struct entropy_source efi_entropy __entropy_source ( ENTROPY_NORMAL ); + /** Random number generator protocol */ static EFI_RNG_PROTOCOL *efirng; EFI_REQUEST_PROTOCOL ( EFI_RNG_PROTOCOL, &efirng ); @@ -91,6 +93,12 @@ static int efi_entropy_enable ( void ) { return rc; } + /* We use essentially the same mechanism as for the BIOS + * RTC-based entropy source, and so assume the same + * min-entropy per sample. + */ + entropy_init ( &efi_entropy, MIN_ENTROPY ( 1.3 ) ); + return 0; } @@ -235,7 +243,10 @@ static int efi_get_noise ( noise_sample_t *noise ) { return 0; } -PROVIDE_ENTROPY_INLINE ( efi, min_entropy_per_sample ); -PROVIDE_ENTROPY ( efi, entropy_enable, efi_entropy_enable ); -PROVIDE_ENTROPY ( efi, entropy_disable, efi_entropy_disable ); -PROVIDE_ENTROPY ( efi, get_noise, efi_get_noise ); +/** EFI entropy source */ +struct entropy_source efi_entropy __entropy_source ( ENTROPY_NORMAL ) = { + .name = "efi", + .enable = efi_entropy_enable, + .disable = efi_entropy_disable, + .get_noise = efi_get_noise, +}; |