diff options
Diffstat (limited to 'qemu/roms/ipxe/src/include/ipxe/null_entropy.h')
-rw-r--r-- | qemu/roms/ipxe/src/include/ipxe/null_entropy.h | 52 |
1 files changed, 0 insertions, 52 deletions
diff --git a/qemu/roms/ipxe/src/include/ipxe/null_entropy.h b/qemu/roms/ipxe/src/include/ipxe/null_entropy.h deleted file mode 100644 index 91adefa69..000000000 --- a/qemu/roms/ipxe/src/include/ipxe/null_entropy.h +++ /dev/null @@ -1,52 +0,0 @@ -#ifndef _IPXE_NULL_ENTROPY_H -#define _IPXE_NULL_ENTROPY_H - -/** @file - * - * Nonexistent entropy source - * - * This source provides no entropy and must NOT be used in a - * security-sensitive environment. - */ - -FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); - -#include <stdint.h> - -#ifdef ENTROPY_NULL -#define ENTROPY_PREFIX_null -#else -#define ENTROPY_PREFIX_null __null_ -#endif - -static inline __always_inline int -ENTROPY_INLINE ( null, entropy_enable ) ( void ) { - /* Do nothing */ - return 0; -} - -static inline __always_inline void -ENTROPY_INLINE ( null, entropy_disable ) ( void ) { - /* Do nothing */ -} - -static inline __always_inline double -ENTROPY_INLINE ( null, min_entropy_per_sample ) ( void ) { - /* Actual amount of min-entropy is zero. To avoid - * division-by-zero errors and to allow compilation of - * entropy-consuming code, pretend to have 1 bit of entropy in - * each sample. - */ - return 1.0; -} - -static inline __always_inline int -ENTROPY_INLINE ( null, get_noise ) ( noise_sample_t *noise ) { - - /* All sample values are constant */ - *noise = 0x01; - - return 0; -} - -#endif /* _IPXE_NULL_ENTROPY_H */ |