diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/hw_random.h | 5 | ||||
| -rw-r--r-- | include/linux/syscalls.h | 3 |
2 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/hw_random.h b/include/linux/hw_random.h index b4b0eef..914bb08 100644 --- a/include/linux/hw_random.h +++ b/include/linux/hw_random.h @@ -29,6 +29,8 @@ * @read: New API. drivers can fill up to max bytes of data * into the buffer. The buffer is aligned for any type. * @priv: Private data, for use by the RNG driver. + * @quality: Estimation of true entropy in RNG's bitstream + * (per mill). */ struct hwrng { const char *name; @@ -38,6 +40,7 @@ struct hwrng { int (*data_read)(struct hwrng *rng, u32 *data); int (*read)(struct hwrng *rng, void *data, size_t max, bool wait); unsigned long priv; + unsigned short quality; /* internal. */ struct list_head list; @@ -47,5 +50,7 @@ struct hwrng { extern int hwrng_register(struct hwrng *rng); /** Unregister a Hardware Random Number Generator driver. */ extern void hwrng_unregister(struct hwrng *rng); +/** Feed random bits into the pool. */ +extern void add_hwgenerator_randomness(const char *buffer, size_t count, size_t entropy); #endif /* LINUX_HWRANDOM_H_ */ diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h index 1713977..701daff 100644 --- a/include/linux/syscalls.h +++ b/include/linux/syscalls.h @@ -868,4 +868,7 @@ asmlinkage long sys_kcmp(pid_t pid1, pid_t pid2, int type, asmlinkage long sys_finit_module(int fd, const char __user *uargs, int flags); asmlinkage long sys_seccomp(unsigned int op, unsigned int flags, const char __user *uargs); +asmlinkage long sys_getrandom(char __user *buf, size_t count, + unsigned int flags); + #endif |
