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Diffstat (limited to 'include/linux/random.h')
-rw-r--r--include/linux/random.h15
1 files changed, 11 insertions, 4 deletions
diff --git a/include/linux/random.h b/include/linux/random.h
index 3b9377d6b7a5..4002b3df4c85 100644
--- a/include/linux/random.h
+++ b/include/linux/random.h
@@ -17,6 +17,7 @@ extern void add_interrupt_randomness(int irq, int irq_flags);
extern void get_random_bytes(void *buf, int nbytes);
extern void get_random_bytes_arch(void *buf, int nbytes);
void generate_random_uuid(unsigned char uuid_out[16]);
+extern int random_int_secret_init(void);
#ifndef MODULE
extern const struct file_operations random_fops, urandom_fops;
@@ -28,8 +29,13 @@ unsigned long randomize_range(unsigned long start, unsigned long end, unsigned l
u32 prandom_u32(void);
void prandom_bytes(void *buf, int nbytes);
void prandom_seed(u32 seed);
+void prandom_reseed_late(void);
-u32 prandom_u32_state(struct rnd_state *);
+struct rnd_state {
+ __u32 s1, s2, s3, s4;
+};
+
+u32 prandom_u32_state(struct rnd_state *state);
void prandom_bytes_state(struct rnd_state *state, void *buf, int nbytes);
/*
@@ -49,9 +55,10 @@ static inline void prandom_seed_state(struct rnd_state *state, u64 seed)
{
u32 i = (seed >> 32) ^ (seed << 10) ^ seed;
- state->s1 = __seed(i, 1);
- state->s2 = __seed(i, 7);
- state->s3 = __seed(i, 15);
+ state->s1 = __seed(i, 2U);
+ state->s2 = __seed(i, 8U);
+ state->s3 = __seed(i, 16U);
+ state->s4 = __seed(i, 128U);
}
#ifdef CONFIG_ARCH_RANDOM