cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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random.h (1430B)

      1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
      2/*
      3 * include/linux/random.h
      4 *
      5 * Include file for the random number generator.
      6 */
      7
      8#ifndef _UAPI_LINUX_RANDOM_H
      9#define _UAPI_LINUX_RANDOM_H
     10
     11#include <linux/types.h>
     12#include <linux/ioctl.h>
     13#include <linux/irqnr.h>
     14
     15/* ioctl()'s for the random number generator */
     16
     17/* Get the entropy count. */
     18#define RNDGETENTCNT	_IOR( 'R', 0x00, int )
     19
     20/* Add to (or subtract from) the entropy count.  (Superuser only.) */
     21#define RNDADDTOENTCNT	_IOW( 'R', 0x01, int )
     22
     23/* Get the contents of the entropy pool.  (Superuser only.) */
     24#define RNDGETPOOL	_IOR( 'R', 0x02, int [2] )
     25
     26/* 
     27 * Write bytes into the entropy pool and add to the entropy count.
     28 * (Superuser only.)
     29 */
     30#define RNDADDENTROPY	_IOW( 'R', 0x03, int [2] )
     31
     32/* Clear entropy count to 0.  (Superuser only.) */
     33#define RNDZAPENTCNT	_IO( 'R', 0x04 )
     34
     35/* Clear the entropy pool and associated counters.  (Superuser only.) */
     36#define RNDCLEARPOOL	_IO( 'R', 0x06 )
     37
     38/* Reseed CRNG.  (Superuser only.) */
     39#define RNDRESEEDCRNG	_IO( 'R', 0x07 )
     40
     41struct rand_pool_info {
     42	int	entropy_count;
     43	int	buf_size;
     44	__u32	buf[0];
     45};
     46
     47/*
     48 * Flags for getrandom(2)
     49 *
     50 * GRND_NONBLOCK	Don't block and return EAGAIN instead
     51 * GRND_RANDOM		No effect
     52 * GRND_INSECURE	Return non-cryptographic random bytes
     53 */
     54#define GRND_NONBLOCK	0x0001
     55#define GRND_RANDOM	0x0002
     56#define GRND_INSECURE	0x0004
     57
     58#endif /* _UAPI_LINUX_RANDOM_H */