1// SPDX-License-Identifier: GPL-2.0-or-later
2
3extern void *jent_kvzalloc(unsigned int len);
4extern void jent_kvzfree(void *ptr, unsigned int len);
5extern void *jent_zalloc(unsigned int len);
6extern void jent_zfree(void *ptr);
7extern void jent_get_nstime(__u64 *out);
8extern int jent_hash_time(void *hash_state, __u64 time, u8 *addtl,
9 unsigned int addtl_len, __u64 hash_loop_cnt,
10 unsigned int stuck);
11int jent_read_random_block(void *hash_state, char *dst, unsigned int dst_len);
12
13struct rand_data;
14extern int jent_entropy_init(unsigned int osr, unsigned int flags,
15 void *hash_state, struct rand_data *p_ec);
16extern int jent_read_entropy(struct rand_data *ec, unsigned char *data,
17 unsigned int len);
18
19extern struct rand_data *jent_entropy_collector_alloc(unsigned int osr,
20 unsigned int flags,
21 void *hash_state);
22extern void jent_entropy_collector_free(struct rand_data *entropy_collector);
23
24#ifdef CONFIG_CRYPTO_JITTERENTROPY_TESTINTERFACE
25int jent_raw_hires_entropy_store(__u64 value);
26void jent_testing_init(void);
27void jent_testing_exit(void);
28#else /* CONFIG_CRYPTO_JITTERENTROPY_TESTINTERFACE */
29static inline int jent_raw_hires_entropy_store(__u64 value) { return 0; }
30static inline void jent_testing_init(void) { }
31static inline void jent_testing_exit(void) { }
32#endif /* CONFIG_CRYPTO_JITTERENTROPY_TESTINTERFACE */
33

source code of linux/crypto/jitterentropy.h