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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-02-01 20:48:37 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-02-01 20:48:37 +0300 |
| commit | acd77500aa8a337baa6d853568c4b55aca48e20f (patch) | |
| tree | 7661b0c0699e50c4ee31f8ae0675dd641400a6d1 /include | |
| parent | 26dca6dbd62d74a5012cafab6b2d6d65a01ea69c (diff) | |
| parent | 4cb760b02419061209b9b4cc2557986a6bf93e73 (diff) | |
| download | linux-acd77500aa8a337baa6d853568c4b55aca48e20f.tar.xz | |
Merge tag 'random_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random
Pull random changes from Ted Ts'o:
"Change /dev/random so that it uses the CRNG and only blocking if the
CRNG hasn't initialized, instead of the old blocking pool. Also clean
up archrandom.h, and some other miscellaneous cleanups"
* tag 'random_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random: (24 commits)
s390x: Mark archrandom.h functions __must_check
powerpc: Mark archrandom.h functions __must_check
powerpc: Use bool in archrandom.h
x86: Mark archrandom.h functions __must_check
linux/random.h: Mark CONFIG_ARCH_RANDOM functions __must_check
linux/random.h: Use false with bool
linux/random.h: Remove arch_has_random, arch_has_random_seed
s390: Remove arch_has_random, arch_has_random_seed
powerpc: Remove arch_has_random, arch_has_random_seed
x86: Remove arch_has_random, arch_has_random_seed
random: remove some dead code of poolinfo
random: fix typo in add_timer_randomness()
random: Add and use pr_fmt()
random: convert to ENTROPY_BITS for better code readability
random: remove unnecessary unlikely()
random: remove kernel.random.read_wakeup_threshold
random: delete code to pull data into pools
random: remove the blocking pool
random: make /dev/random be almost like /dev/urandom
random: ignore GRND_RANDOM in getentropy(2)
...
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/random.h | 24 | ||||
| -rw-r--r-- | include/uapi/linux/random.h | 4 |
2 files changed, 11 insertions, 17 deletions
diff --git a/include/linux/random.h b/include/linux/random.h index f189c927fdea..d319f9a1e429 100644 --- a/include/linux/random.h +++ b/include/linux/random.h @@ -167,29 +167,21 @@ static inline void prandom_seed_state(struct rnd_state *state, u64 seed) #ifdef CONFIG_ARCH_RANDOM # include <asm/archrandom.h> #else -static inline bool arch_get_random_long(unsigned long *v) +static inline bool __must_check arch_get_random_long(unsigned long *v) { - return 0; + return false; } -static inline bool arch_get_random_int(unsigned int *v) +static inline bool __must_check arch_get_random_int(unsigned int *v) { - return 0; + return false; } -static inline bool arch_has_random(void) +static inline bool __must_check arch_get_random_seed_long(unsigned long *v) { - return 0; + return false; } -static inline bool arch_get_random_seed_long(unsigned long *v) +static inline bool __must_check arch_get_random_seed_int(unsigned int *v) { - return 0; -} -static inline bool arch_get_random_seed_int(unsigned int *v) -{ - return 0; -} -static inline bool arch_has_random_seed(void) -{ - return 0; + return false; } #endif diff --git a/include/uapi/linux/random.h b/include/uapi/linux/random.h index 26ee91300e3e..dcc1b3e6106f 100644 --- a/include/uapi/linux/random.h +++ b/include/uapi/linux/random.h @@ -48,9 +48,11 @@ struct rand_pool_info { * Flags for getrandom(2) * * GRND_NONBLOCK Don't block and return EAGAIN instead - * GRND_RANDOM Use the /dev/random pool instead of /dev/urandom + * GRND_RANDOM No effect + * GRND_INSECURE Return non-cryptographic random bytes */ #define GRND_NONBLOCK 0x0001 #define GRND_RANDOM 0x0002 +#define GRND_INSECURE 0x0004 #endif /* _UAPI_LINUX_RANDOM_H */ |